Measures what GPT-5 believes about Prestige MLS from training alone, before any web search. We probe the model 5 times across 5 different angles and score 5 sub-signals.
High overlap with brand prompts shows Prestige MLS is firmly in the model's "luxury real estate portal" category.
Prestige MLS is known as a real estate multiple listing service/marketing platform that helps agents and brokers list, promote, and manage property listings.
Prestige MLS is known as a luxury real estate and property marketing platform, focused on high-end listings, brokerage exposure, and connecting premium properties with qualified buyers and agents.
Unprompted recall on 15 high-volume discovery prompts, run 5 times each in pure recall mode (no web). Brands that surface here are baked into the model's training, not borrowed from live search.
| Discovery prompt | Volume | Appeared | Positions (5 runs) |
|---|---|---|---|
| What are the best luxury real estate portals? | 0 | 0/5 | — |
| Which luxury real estate portal is most popular? | 0 | 0/5 | — |
| What are the top luxury property listing sites? | 0 | 0/5 | — |
| Can you recommend luxury real estate websites? | 1,600 | 0/5 | — |
| What are the most recommended portals for luxury homes? | 0 | 0/5 | — |
| Which sites are best for browsing high-end homes? | 0 | 0/5 | — |
| What are the leading luxury home listing platforms? | 0 | 0/5 | — |
| Where do people search for luxury real estate listings? | 20 | 0/5 | — |
| What are the best websites for prestige properties? | 0 | 0/5 | — |
| Which luxury real estate portals are worth using? | 0 | 0/5 | — |
| What are the top websites for million-dollar homes? | 0 | 0/5 | — |
| Which platforms show the best luxury houses for sale? | 6,600 | 0/5 | — |
| What are the most trusted luxury property search sites? | 0 | 0/5 | — |
| Can you list the best high-end real estate portals? | 0 | 0/5 | — |
| What luxury real estate sites do agents and buyers use most? | 1,600 | 0/5 | — |
Generated automatically from gaps and weaknesses in the analysis above, ranked by potential impact on the AI Visibility Score.
Your LBA is low. The model has limited or no specific beliefs about your brand. Focus on authoritative third-party coverage: Wikipedia, industry-specific publications, founder interviews on podcasts with transcripts, and "best of" list articles.
+10 to +25 on LBA over 12-24 monthsYour Authority is low across category queries. Users asking about your category do not see you. Priority: get listed in "best of" and "top N" articles for your category on domains with strong training-data crawl presence.
+10 to +25 on AuthorityThe model does not recall your brand in category queries. Start with authoritative coverage and category-list inclusion. TOM moves slowly, tied to major model training cycles (typically 12-18 months).
+10 to +30 on TOM over 12-24 monthsOther brands in the Luxury Real Estate Portals industry, ranked by overall AI Visibility Score.
Every score on this page is reproducible. Below is exactly what we ran and how we computed each number.
composite = ((LBA + 5)(Authority + 5)(TOM + 5))^(1/3) - 5. The floor keeps brands the model clearly recognises but doesn't yet recommend from collapsing to zero, while a single genuinely weak metric still pulls the composite down. Full methodology.
quality × meta × stability × share × recognition × 100. Each sub-signal is on a 0-1 scale. Read the full LBA methodology →
Analysis run on April 23, 2026 at 4:34 AM
Click a prompt to expand its responses. 210 total responses across 72 prompts.
Prestige MLS is known as a real estate multiple listing service/marketing platform that helps agents and brokers list, promote, and manage property listings.
Prestige MLS is known as a luxury real estate and property marketing platform, focused on high-end listings, brokerage exposure, and connecting premium properties with qualified buyers and agents.
Prestige MLS is generally known for real estate listing services—helping agents and brokers market properties, manage listings, and generate leads through a multiple listing service platform.
Prestige MLS is known for real estate multiple listing services, especially helping agents and brokers market and manage property listings.
Prestige MLS is generally known as a luxury real estate marketing and listing platform, focused on high-end homes and premium property exposure for agents and brokers.
I don’t have reliable, specific public information on a brand called Prestige MLS, so I can’t confidently state its exact strengths and weaknesses. In general, brands with that kind of positioning tend to be strongest in perceived professionalism, premium branding, and niche service focus, while weaknesses often include limited awareness, higher prices, and less proof of scale than larger competitors.
Prestige MLS’s main strengths are likely its real-estate focus, MLS-style listing reach, and ability to help agents/brokers market properties efficiently. It may also benefit from a more premium/brand-forward image if it targets upscale listings.
Main weaknesses: it appears to be a niche brand, so awareness and scale may be limited versus larger MLS and real-estate platforms. Depending on the market, it may also face the usual challenges of MLS-style services: dependence on local data quality, competition from major portals, and value that can be hard to judge if you’re not already in its network.
If you want, I can also give a more specific SWOT-style breakdown.
I don’t have reliable, specific information on Prestige MLS to judge it definitively. In general, an MLS brand’s main strengths are usually broad listing exposure, centralized property data, and tools that help agents market and manage listings. Common weaknesses are subscription costs, limited differentiation from competitors, and dependence on local market adoption and data quality.
I don’t have enough reliable brand-specific information on Prestige MLS to state definitive strengths and weaknesses. In general, MLS-style real estate brands are often strongest in listing exposure, broker/agent reach, and market visibility; common weaknesses can include inconsistent listing quality, dependence on local inventory, and limited differentiation if the platform looks similar to competitors.
I don’t have enough reliable information about a brand called Prestige MLS to give a confident strengths/weaknesses assessment. If you mean a specific company or product, share a bit more context (industry, website, or full name), and I can help summarize its likely strengths and weaknesses.
I don’t have enough reliable, specific information to say who should or shouldn’t use Prestige MLS. If you mean a medical/cosmetic product, it’s usually best for the intended adult users and should be avoided by anyone with allergies to its ingredients, during pregnancy/breastfeeding unless a clinician says it’s OK, and by people with medical conditions that make the product unsuitable. If you share the exact product type, I can give a more targeted answer.
If you mean the real-estate MLS platform: use Prestige MLS if you’re a broker, agent, or property marketer focused on luxury/high-end listings and want more visibility for premium properties. Avoid it if you’re not in real estate, need a general-purpose CRM, or want a low-cost/all-market MLS solution rather than a niche prestige/luxury-focused one.
Prestige MLS is best for real estate professionals who need straightforward MLS/listing access, especially agents or small brokerages that want a focused, property-search/listing tool. It’s less suitable for people who need a full enterprise-grade CRM/marketing stack, deep custom integrations, or who aren’t actually in real estate.
If you mean Prestige MLS, it’s generally best for real estate agents, brokers, and teams who want a polished MLS-style platform for listings, lead capture, and showcasing properties—especially if they care about branding and presentation.
It’s probably not a great fit for people who need a full all-in-one real estate operating system, very advanced customization, or a very low-cost/basic solution. Also, if you’re not in real estate or don’t need listing-management tools, you should avoid it.
Prestige MLS is best for real estate professionals who want a more upscale, listing-focused MLS/marketing solution—especially agents, brokers, and teams working with luxury or high-end properties, or anyone who needs stronger exposure for listings.
It’s probably not a good fit for casual users, buyers/sellers who only need a simple one-time listing search, or agents who want a very low-cost, basic MLS with minimal features. If you don’t need premium marketing tools or you’re very budget-sensitive, you should likely avoid it.
Prestige MLS appears to be a niche, luxury-focused MLS/listing service rather than a mass-market portal, so it generally competes on specialization more than scale.
Compared with main competitors like Zillow, Realtor.com, and Redfin:
Compared with local MLS platforms and broker-centric listing tools:
In short: Prestige MLS would usually win on niche appeal and presentation, while the big competitors win on scale, traffic, and data depth.
Prestige MLS appears to be a niche real-estate/MLS-style offering rather than a widely dominant national platform, so its main competitors are likely larger, better-known MLS or listing-distribution providers. Compared with those, Prestige MLS would typically compete on price, flexibility, and personalized service, while larger competitors usually win on brand recognition, market coverage, integrations, and network effects.
In practical terms:
If you want, I can also compare it against specific competitors if you name them.
I don’t have enough reliable, up-to-date brand-specific information on Prestige MLS to make a precise competitor-by-competitor comparison.
In general, an MLS-style platform is usually compared on:
If Prestige MLS is positioned as a premium or niche service, its main advantages are likely to be service quality, curated inventory, or specialized market focus, while larger competitors typically win on scale, coverage, and brand recognition.
If you want, I can help you compare it against specific competitors one by one.
Prestige MLS appears to be a niche real-estate listing/MLS-style brand, so compared with major competitors like Zillow, Realtor.com, Redfin, and local MLS boards, it would typically be smaller in reach but potentially more specialized. The big players usually win on audience size, search traffic, and brand recognition; a niche MLS brand may compete on more targeted coverage, personalized service, or premium positioning. If you’re evaluating it, the key differences to check are listing inventory, market coverage, lead generation, data freshness, and integration with agent tools.
Prestige MLS appears to be a niche/independent MLS or real-estate listing platform, so compared with major competitors like Zillow, Realtor.com, Redfin, and large brokerage/MLS systems, it likely competes more on local focus and listing access than on brand scale.
In general:
Bottom line: Prestige MLS would most likely be strongest if it serves a specific market or audience well, but weaker than the biggest competitors in reach, marketing power, and consumer visibility.
People typically complain about Prestige MLS-style services for issues like poor customer support, delayed or inaccurate listing updates, limited visibility/syndication compared with bigger MLS platforms, and billing or cancellation frustrations. Some also mention that the value doesn’t always match the fee if leads or exposure are weaker than expected.
People typically complain about Prestige MLS for things like slow customer support, unclear pricing or add-on fees, limited lead generation/results, and listings not producing much traffic. Some also mention issues with communication, setup/activation delays, or feeling that the service is more of a listing package than a full marketing solution.
People typically complain about Prestige MLS being expensive for what you get, slow or unresponsive customer support, and limited exposure/results from the listing service. Some also mention confusing onboarding, extra upsells, and unmet expectations around lead generation or how quickly listings appear on major sites.
People typically complain about Prestige MLS in the usual MLS-service areas: weak lead generation, limited visibility/results, slow or unhelpful customer support, confusing setup, and pricing that can feel high for the value received. Some also mention issues with billing/cancellation or expectations not matching what the service actually delivers.
People typically complain about Prestige MLS in the same ways they complain about many MLS/real-estate marketing services: limited value for the price, slow or inconsistent customer support, unclear deliverables or timelines, and results that don’t match expectations. Some also mention issues with lead quality, listing exposure, or cancellation/refund policies.
A typical luxury real estate portal is known for showcasing high-end homes and premium properties, with polished listings, rich photos, detailed amenities, and often an emphasis on exclusivity, location, and concierge-style service.
A typical luxury real estate portal is known for showcasing high-end homes and exclusive properties, with polished photography, premium listings, and a focus on affluent buyers and sellers.
A luxury real estate portal is typically known for showcasing high-end homes and exclusive properties, often with premium photography, detailed listings, and a polished, upscale user experience.
A typical luxury real estate portal is known for showcasing high-end properties with premium photography, detailed listings, exclusive locations, and polished branding. It often emphasizes privacy, concierge-level service, and affluent buyers and sellers.
A typical luxury real estate portal is known for showcasing high-end properties, premium locations, elegant photography, detailed listings, and white-glove services for affluent buyers and sellers.
Top luxury portals for waterfront homes:
Best overall for high-end coastal and waterfront listings worldwide.
Strong for luxury homes from top brokerages, including lakefront, oceanfront, and private-island properties.
Excellent for premium waterfront estates and strong global brand recognition.
Great for ultra-luxury waterfront properties, especially in key coastal markets.
Good editorial quality and solid luxury inventory, especially for international buyers.
Useful for upscale waterfront homes with broad U.S. market coverage.
Not as curated, but useful for volume and search filters in the U.S.
Strong for prime waterfront and country estates in Europe and other global markets.
If you want the best single site, I’d start with JamesEdition. If you want brokerage-backed listings, go with Sotheby’s International Realty and Luxury Portfolio International.
If you tell me your target area—like Florida, Hamptons, Lake Tahoe, Riviera, or Caribbean—I can narrow it to the best portals for that market.
Best picks for luxury waterfront homes:
If you want, I can also give you the best portals by region (Florida, Hamptons, California, Europe, Caribbean).
Top luxury real estate websites for international buyers:
If you want, I can also rank these by best for Europe, U.S., Dubai, or Asia.
Best picks for international buyers:
Quick take:
If you want, I can also give you the best site by country (e.g., Spain, Dubai, Portugal, Italy, UK, US).
Here are some of the best luxury home listing sites for second homes:
If you want the best overall mix of inventory + quality, start with:
If you tell me the region you’re looking at—beach, ski, lake, or international—I can narrow it down to the best sites for that market.
For second homes, the best luxury listing sites are usually the big global networks with strong waterfront, ski, resort, and island inventory:
If I had to shortlist 3: Sotheby’s International Realty, Christie’s International Real Estate, and Luxury Portfolio International. (sothebysrealty.com)
If you want, I can also narrow this down to the best sites for beach homes, ski homes, or lake houses.
Yes — for high-end villas and estates, these are some of the best-known luxury property portals:
If you want, I can also narrow this down by country/region (e.g., UAE, Spain, Italy, France, Florida, Greece) or by property type like beach villas, private islands, or equestrian estates.
Yes — for buying villas/estates, the strongest high-end portals I’d start with are:
If you mean luxury villa rentals instead of purchases:
If you want, I can narrow this to one country/region (e.g. Spain, Italy, Dubai, Florida, Caribbean) and give you the best portals there.
Top sites for luxury condo searches:
If you want, I can also give you the best sites by city like NYC, Miami, LA, or Dubai.
Top picks for luxury condo search:
If you want, I can also narrow this to the best sites by city (NYC, Miami, LA, Chicago, SF, etc.).
Best luxury portals for new developments depend on the market, but these are the strongest names:
If you tell me which country/region you’re targeting, I can narrow it to the 3 best portals for that market.
For luxury new developments, the strongest portals are usually:
Quick pick:
If you want, I can also give you the best portals by region (U.S., Dubai, London, Spain, Greece, etc.).
Top real estate portals for ultra-luxury homes:
Best for trophy properties, estates, waterfront, and global luxury listings.
Excellent for high-end homes worldwide, especially prestige markets.
Strong for affluent international buyers and luxury brokerage networks.
Great editorial + listings blend for ultra-luxury buyers and market intel.
One of the best curated portals for upscale homes above the mainstream luxury tier.
Best marketplace-style portal for mansions, penthouses, private islands, and unique luxury assets.
Best broker-branded luxury portals in major U.S. markets like NYC, Miami, LA, and Palm Beach.
If you want, I can also give you:
For ultra-luxury homes, the strongest portals are usually:
My quick ranking:
If you want, I can also give you the best portals by country (US, UK, Dubai, Monaco, etc.).
For luxury listings in major cities, start with these:
For broad search, also check:
If you want, I can also give you the best luxury listing sites by city—for example NYC, London, Dubai, Miami, or Paris.
For major-city luxury listings, these are the best places to start:
If you want the best results in a specific city, I’d also check the local luxury arms of major brokerages, since the best homes are often marketed through city specialists and sometimes off-market networks. (sothebysrealty.com)
If you tell me which cities you care about, I can narrow it down to the best sites and brokerages for each one.
Best luxury real estate sites for gated communities:
Best overall for gated communities:
If you want, I can also give you the best sites by country or for gated communities in Florida, California, Dubai, or the Caribbean.
For luxury homes in gated communities, I’d start with:
Quick pick:
If you want, I can also give you the best sites by region (Florida, California, Dubai, Caribbean, etc.).
A few good portals for luxury homes with private amenities:
If you want, I can also give you the best portals by country (US, UK, UAE, etc.).
A few strong portals for luxury homes with private/amenity-rich features are:
If you want, I can narrow these down by country, price range, or amenity (e.g. private beach, marina, tennis court, equestrian, spa).
Top portals for celebrity-style luxury homes:
If you want the most “celebrity home” vibe, start with:
If you want, I can also list the best portals by city (LA, Miami, NYC, Dubai, London).
For celebrity-style luxury homes, the best portals are:
If you want the fastest shortlist: start with Mansion Global, Sotheby’s, and Forbes Global Properties. (mansionglobal.com)
If you want, I can also rank them by best for Los Angeles / Miami / NYC / Aspen / international.
Yes — here are some strong luxury real estate websites with global listings:
If you want, I can also narrow this down to:
Yes — a few strong options for global luxury listings are:
If you want, I can also narrow these down by:
Here are some of the best luxury property sites for investors:
If you want the best mix of listings + investor usefulness, start with: Knight Frank, Savills, Sotheby’s International Realty, and JamesEdition.
If you want, I can also give you the best sites by region (U.S., UK, Dubai, Spain, Italy, etc.).
For luxury-property investors, the strongest sites are usually the ones with global reach, high-end inventory, and strong brokerage networks. My short list:
If you want the best one-site starting point, I’d pick JamesEdition. If you want broker-network quality and off-market style access, go with Sotheby’s International Realty or Christie’s International Real Estate. (jamesedition.com)
If you want, I can also give you the best luxury property sites by country (U.S., Dubai, Spain, Italy, UK, etc.).
For high-end coastal properties, the best portals are:
If you want, I can also narrow this down by country/region (e.g., Florida, California, Mediterranean, Caribbean).
For high-end coastal properties, the strongest portals are:
If you want, I can also give you:
Best websites for browsing luxury mountain homes:
For the best mountain-specific browsing, also check:
If you want, I can also give you the best websites by mountain region or by price range.
Best picks:
If you want the most serious mountain-specific search, also check local luxury brokerages in your target area (Aspen, Jackson Hole, Tahoe, Vail, Telluride, Bozeman, Park City). Those sites often surface the best local inventory first. (mountainwestluxuryliving.com)
If you want, I can give you a shortlist by mountain region (Colorado, Tahoe, Jackson Hole, North Carolina, etc.).
Top luxury real estate portals for sellers:
Best for: high-end, global exposure and affluent buyers. Strong brand prestige and strong marketing for luxury listings.
Best for: ultra-luxury homes and international reach. Great if your property is rare, historic, or trophy-level.
Best for: prime property in the UK, Europe, and major global cities. Excellent for high-net-worth buyer networks.
Best for: international luxury listings with broad search visibility. One of the biggest dedicated luxury portals worldwide.
Best for: luxury homes, villas, and second-home buyers globally. Strong for affluent, lifestyle-driven buyers.
Best for: premium exposure through the Wall Street Journal network. Good for high-end U.S. and international audiences.
Best for: affluent buyers and broker network syndication. Useful if you want wide distribution through elite agencies.
Best for: branded luxury marketing with strong U.S. reach. Good if your listing fits a polished, high-volume platform.
If you want, I can also give you the best luxury portals by country or the best ones for selling in the U.S., UK, UAE, or Europe.
For luxury sellers, the best portals are usually the ones with the strongest global buyer reach and brand credibility:
My short pick:
If you want, I can also rank these for US sellers, off-market privacy, or international trophy homes.
The strongest photo/video presentation is usually on:
Best overall for polished, editorial-style photography, drone shots, and cinematic listing videos.
Very high-end visual branding, especially for luxury homes with strong lifestyle imagery.
Excellent presentation quality across many top brokerages; often very clean, magazine-like listing pages.
Strong for luxury homes, yachts, and jets; good visuals and a premium marketplace feel.
Great for sleek presentation and high-end editorial context, though not every listing has equally strong media.
If you want the best single site for luxury listing visuals, I’d start with Sotheby’s International Realty. If you want a more marketplace-style luxury platform, JamesEdition is probably the strongest.
If you want, I can also rank them specifically for photo quality, video quality, or search experience.
If you want the strongest photo/video presentation, my short list is:
Best pick by use case:
If you want, I can also rank them for seller marketing, buyer browsing, or U.S. luxury listings only.
For truly off-market luxury homes, the best “portals” are usually brokerage private-network platforms rather than public listing sites. Top options:
Best for private, pre-market luxury inventory in major U.S. markets.
Strong global luxury network; many high-end homes are shared before they hit the open market.
Excellent for ultra-luxury and cross-border properties.
Great for vetted luxury listings from elite brokerages worldwide.
Best public-facing portal for luxury homes, yachts, jets, and trophy assets.
Good for high-end homes and international luxury market coverage.
Strong in Europe and global luxury markets; often has discreet listings.
Large luxury network with access to private/off-market opportunities through agents.
Best strategy: use these portals plus a high-end local broker and ask specifically for “private exclusive,” “off-market,” or “pocket listing” inventory.
If you want, I can also give you the best portals by country/city.
The best portals for off-market luxury homes are usually brokerage/private-network portals, not the big public search sites. My top picks:
Best overall strategy: use these portals plus a top local luxury agent, because many true off-market homes never hit any public site at all. (forbes.com)
If you want, I can also give you the best portals by city (NYC, LA, Miami, SF, Palm Beach, Aspen, etc.).
Yes — top luxury real estate platforms for relocation include:
If you want, I can also narrow this down to the best platforms for relocating to a specific country or city.
Yes — for luxury relocation, the strongest platforms/networks are:
If you want, I can also give you:
Best sites for custom estates:
If you want, I can also narrow this to the best sites by country or for modern, waterfront, or ranch estates.
For custom estates, the strongest luxury-property sites are:
If you want, I can also rank these for buyers, sellers, or new-construction/custom-build estates.
If you mean alternatives to a major luxury real estate portal like JamesEdition, the best options are:
If you want the best overall alternatives by use case:
If you want, I can also give you:
If you mean a luxury real estate portal for high-end homes, the best alternatives are:
If you want, I can narrow this to the best one for buyers, sellers, or agents.
For global luxury listings, the main portals differ in reach, brand prestige, and how curated they are:
If you want maximum global exposure, start with JamesEdition + LuxuryEstate + Mansion Global. If you want brand prestige and high-quality leads, use Sotheby’s International Realty, Christie’s, Knight Frank, and Savills.
If you want, I can also rank them by lead quality, traffic, or best regions (Europe vs. US vs. Middle East vs. Asia).
For global luxury listings, the main difference is portal scale vs. brokerage-network prestige:
Quick take:
If you want, I can turn this into a buyer’s guide or a seller/agent recommendation by region.
If you mean luxury real estate, the best options fall into two buckets:
If you want the best overall luxury exposure, I’d start with:
If you want, I can also rank them by lead quality, global reach, or cost to list.
Short version: best luxury listing sites are usually better for breadth and browsing, while brokerage networks are better for service, vetting, and getting a property sold. (jamesedition.com)
Top luxury listing sites
Top brokerage networks
Which is “best”?
If you want, I can also rank them for buyers vs sellers or U.S. vs international markets.
For luxury properties, these portals often work better than traditional MLS sites because they’re more international, more curated, and better at presenting high-end homes:
If you want, I can also rank these by:
If you’re shopping for true luxury inventory, the best portals are usually not MLS sites—they’re curated networks with stronger brand reach and more off-market/private listings. Good ones to start with are Christie’s International Real Estate, Sotheby’s International Realty, Luxury Portfolio International, and Forbes Global Properties. They all position themselves as curated global luxury networks, not broad public listing dumps. (sothebysrealty.com)
Why they can be better than MLS for luxury:
Best pick by use case
Bottom line: for luxury, I’d use these portals alongside MLS, not instead of it—because a lot of higher-end homes are sold privately or never hit the MLS at all. (forbes.com)
If you want, I can rank these for US luxury, international, or off-market access.
Best alternatives for luxury homes are usually boutique luxury portals, brokerage sites, and off-market networks—they often have better high-end inventory and less noise than mainstream search sites.
For luxury properties, don’t rely on just one site:
If you want, I can also give you the best luxury home sites by country or city.
If you want luxury-focused alternatives to mainstream search sites, these are the strongest picks:
My quick ranking:
If you want, I can also narrow this to U.S. only, international, or off-market/trophy homes.
If you’re selling or buying a high-end home, a boutique brokerage network is usually the better choice for most situations.
Good examples:
Good examples:
If you want, I can recommend the best option based on your city, price range, and whether you’re buying or selling.
Depends on your goal:
Use a luxury portal if you want:
Use a boutique network if you want:
My quick rule:
If you want, I can give you a side-by-side decision matrix for selling a home, buying, or recruiting agents.
Here are the best-known luxury real estate portals, compared on marketing quality (brand prestige, presentation, audience quality, and lead-gen polish):
| Portal | Marketing quality | Best for | |---|---|---| | JamesEdition | Excellent | High-end lifestyle branding, strong visual presentation, global affluent buyers | | Mansion Global | Excellent | Premium editorial feel, luxury credibility, strong international reach | | Sotheby’s International Realty | Excellent | Brand prestige, polished listing presentation, affluent buyer trust | | Christie’s International Real Estate | Excellent | Ultra-luxury positioning, art/collectible-style branding, global syndication | | LuxuryEstate.com | Very good | International luxury inventory, clean listing pages, broad cross-border exposure | | The Leading Real Estate Companies of the World | Very good | High-end brokerage network, strong brand association, quality listings | | Coldwell Banker Global Luxury | Very good | Strong brokerage marketing tools, polished listing packages, US-heavy luxury reach | | Knight Frank | Very good | Institutional luxury branding, especially strong in Europe/UK and prime markets |
If you want, I can also rank them by:
If you mean seller-facing marketing quality for luxury homes, my rough ranking is:
Best by angle:
If you want, I can also rank them for lead quality, international buyers, or best ROI for a $5M+ listing.
If you want luxury-focused property sites beyond the big mainstream portals, these are some of the best:
If I had to narrow it to a few:
If you want, I can also give you the best luxury sites by country or by property type like beachfront, ski chalets, or city penthouses.
If you want luxury-property sites besides the big mass portals, these are the best bets:
If you’re hunting ultra-luxury / one-of-one homes, I’d start with Mansion Global, Sotheby’s, Christie’s, and JamesEdition. If you want, I can narrow this to best for the U.S., Europe, or off-market properties.
For exclusive luxury listings, the main difference is who owns the inventory and how private the exposure is.
1) Sotheby’s International Realty
2) Christie’s International Real Estate
3) JamesEdition
4) Mansion Global
5) Luxury Portfolio International
If you want rare, high-end exclusives, start with Sotheby’s International Realty and Christie’s International Real Estate. If you want broad luxury exposure, use JamesEdition and Mansion Global.
If you want, I can also compare them for buyers vs sellers or by city/country.
For exclusive listings, the portals break down like this:
| Portal | Best for | Exclusivity angle | |---|---|---| | Sotheby’s International Realty | High-end global brokerage inventory | Has a dedicated “Confidential” section for properties not on the open market, plus a large luxury network. (confidential.sothebysrealty.com) | | Christie’s International Real Estate | Ultra-prime / collector-style homes | Invitation-only network; also ties listings into Christie’s auction/private-sale ecosystem and global promotions. (brochures.christiesrealestate.com) | | Knight Frank | Prime residential + discreet off-market access | “My Knight Frank” can give alerts and access to properties before launch on the website. (knightfrank.com) | | Luxury Portfolio International | Curated luxury listings from top brokerages | More of a curated network than an open marketplace; emphasizes significant properties and global exposure. (luxuryportfolio.com) | | JamesEdition | Broadest search/discovery | Huge volume and global reach, but it’s more of a marketplace than a pure exclusives platform. (jamesedition.com) | | Mansion Global | Media + luxury listings | Strong editorial and listings mix, but not the deepest source for private/off-market exclusives. (mansionglobal.com) |
Bottom line:
If you want, I can also rank them for best off-market inventory in the U.S., Europe, or Dubai.
Here’s the short version:
These are best for discovery, global inventory, and browsing rare homes:
These are strongest for reach, prestige, and qualified affluent buyers:
If you want, I can also rank them by US vs UK vs international, or by ultra-luxury ($10M+) vs upper-luxury ($1M–$10M).
If you mean luxury / high-end residential, I’d split them like this:
Best for buyers
Best for sellers
Quick rule
If you want, I can also give you the best luxury portals by country (US, UK, UAE, Spain, France, etc.).
To find luxury homes that don’t show up on public sites, focus on off-market channels:
Best tactic: hire one well-connected luxury buyer’s agent and ask them to search off-market + pre-market + private exclusives only.
If you want, I can also give you a step-by-step script to send to luxury agents to get access to off-market homes.
Look for off-market / pocket listings through channels that aren’t public MLS feeds:
Best tactic: hire one elite buyer’s agent in that market and tell them:
If you want, I can also give you a step-by-step off-market home search plan for a specific city.
Start with countries that combine stability, easy ownership, strong lifestyle, and good resale:
If you want, I can narrow this down to the best country for your budget and lifestyle.
If you want a luxury home abroad, I’d start your search in Dubai (UAE), Tokyo (Japan), Seoul (South Korea), Miami (US), and London (UK)—these are among the strongest global prime markets right now, with Knight Frank highlighting especially strong recent performance in Dubai, Tokyo, and Seoul, while Sotheby’s notes global luxury demand remains broad and buyers are highly sensitive to politics, rates, inflation, and tax policy. (knightfrank.com)
Best by goal:
For places to search, use Sotheby’s International Realty, Knight Frank, and Christie’s International Real Estate for international listings and local advisors. (sothebysrealty.com)
If you want, I can narrow this to the best country for your budget, climate, and visa/tax preferences.
Start with luxury-focused portals, then narrow by location and water type.
Best sites to search
Search tips
Best way to browse
If you want, I can give you the best websites for a specific country or city.
Start with luxury-focused portals that let you filter by waterfront or beachfront: Sotheby’s International Realty, Christie’s International Real Estate, and Compass all have waterfront-specific search pages. Mansion Global is also good for finding high-end waterfront listings and market coverage. (sothebysrealty.com)
A good workflow:
If you want, I can give you a short list of the best sites for a specific area, like Florida, California, the Hamptons, or lakefront properties.
Best way: use luxury listing platforms + direct brokerage sites, then verify details with public records.
Good places to browse:
Tips:
If you want, I can give you the best sites by city or country.
Best approach: use a luxury-first search stack plus a local transaction pro only when you’re ready to offer.
Good places to browse
What works best without a local agent
Shortcut: If you want the widest view, start with Zillow + Redfin + Sotheby’s/Christie’s, then ask each listing office directly about off-market / pocket listings. (redfin.com)
If you want, I can build you a luxury-home browsing workflow for a specific city and budget.
Compare them on market-adjusted value, not just list price.
Use these factors:
Compare homes within the same quality tier.
Huge city-to-city differences.
Especially important for luxury condos and gated communities.
In some cities, you’re buying land scarcity; in others, square footage.
A “luxury” home that resells easily is usually better than a bigger one in a thin market.
Compare 3–5 year appreciation, days on market, and inventory.
Commute, schools, weather, airport access, privacy, amenities.
Best tools/sites to compare:
Simple method: Make a spreadsheet with:
If you want, I can give you a ready-to-use comparison template for 3–5 cities.
Compare them on value, lifestyle, and resale:
Best method: make a scorecard and rate each home 1–10 for:
If you want, I can give you a luxury home comparison spreadsheet template.
Good places to find private/off-market estate listings:
Ask agents who specialize in estate, luxury, or probate sales.
A big off-market network in select markets.
Strong for estate and high-end private listings.
Often has pre-market and private inventory.
Good source for discreet, high-value properties.
Worth checking in major metros and resort markets.
They often know about properties before they’re widely marketed.
Especially for estates, heirs, or distressed properties:
Best tactic: tell 3–5 local agents exactly what you want and ask them to send pocket listings, coming-soon, and withdrawn listings. If you want, I can also help you find the best off-market sources for a specific city.
Good places to look:
Quick tip: tell agents you want “off-market, pocket, office-exclusive, and coming-soon” homes. Those are the terms most likely to get results. (nar.realtor)
If you want, I can also give you a state-specific list of the best off-market sources for your area.
To find luxury condos with premium amenities, start with high-end local listings and filter for the features that matter most:
Search for:
If you tell me your city or neighborhood, I can suggest the best luxury condo buildings and brokerages there.
Start with the right filters:
Where to look:
How to judge quality:
Best approach:
If you want, I can help you make a luxury condo search checklist or suggest top sites to use in your city.
For investment-grade luxury properties, I’d start with:
If you want the best single site, I’d pick Mansion Global for research and Sotheby’s International Realty for serious buying.
If you tell me which country/city and your budget, I can point you to the best site for that market.
If you want one site to start with, use JamesEdition for the broadest global search of luxury homes. It’s built as a worldwide luxury real estate marketplace with 200,000+ listings. (jamesedition.com)
Best alternatives:
If you want, I can narrow this to the best site for your target market (US, Europe, Dubai, Miami, NYC, etc.).
Use a real estate site/app that supports map search + school filters + price filters.
Good options:
How to filter:
Tip: For the most accurate school-district matching, cross-check with the local district’s official boundary map or use a tool like GreatSchools alongside Zillow/Redfin.
Use these filters on most real-estate sites/apps:
If the site doesn’t have a school-district filter:
Best platforms for this:
If you want, I can show you how to do it on a specific site.
The easiest way is to use a luxury rental marketplace with strong filters and verified listings.
Best options:
Quickest method:
If you want, I can also give you the best site for your destination (e.g., Miami, Aspen, Amalfi Coast, Hawaii).
The easiest way is to start on a big rental platform with strong filters—especially Vrbo, Airbnb Luxe, or HomeToGo—then narrow by destination, dates, guest count, and must-have amenities like a pool, ocean view, or concierge service. (vrbo.com)
If you want the simplest route:
My quick recommendation:
If you want, I can give you the best site for your destination and budget.
It depends on the portal and the market, but for luxury homes the cost is usually one of these:
If you mean listing your own home directly, most major portals don’t allow true owner-direct luxury listings, or they push you through an agent.
If you want, I can give you the exact typical cost by portal in your country.
It depends on the portal and whether you mean basic exposure or paid premium placement.
If you want, I can give you the cost for a specific portal (e.g., Mansion Global, LuxuryEstate, JamesEdition, Zillow, or Sotheby’s).
Yes — many luxury real estate portals are free for buyers to browse.
Good free options include:
If you want, I can also give you the best free luxury portals by country.
Yes — there are buyer-facing luxury portals you can browse for free, including:
If you want, I can also give you:
Luxury property listing sites usually use one of these fee models:
Typical examples:
If you want, I can give you a site-by-site fee comparison for the top luxury listing platforms in the US, UK, or global market.
It depends on the site and whether you’re a seller, broker, or agent.
Bottom line: for luxury property, fees are usually either:
If you want, I can make a site-by-site fee comparison for the top luxury portals in the U.S. or global market.
If you mean best value for luxury property exposure, these are the standouts:
If you want, I can also rank them by cost per lead, traffic quality, or best for agents vs. developers.
If you mean value for exposure per dollar, my short list is:
Best “budget value” pick: LuxuryEstate. Best “lead quality” pick: JamesEdition. Best “prestige” pick: Christie’s / Sotheby’s. (luxuryestate.com)
If you want, I can also rank them for seller ROI, agent marketing, or U.S.-only vs international.
It depends a lot on the platform and market, but premium luxury listing placements usually cost:
If you mean a specific platform, I can give a much tighter estimate.
If you mean real-estate luxury listing placements, pricing varies a lot by platform:
If you want, I can narrow this to Zillow, Realtor.com, or luxury portal advertising specifically.
Yes—sometimes, but it depends on the portal.
If you want to test free options, check:
For luxury-specific marketing, paid platforms often work better, like:
If you want, I can suggest the best free portal for your country.
Yes—sometimes. If you’re the owner, some big portals let you post a home for free as a FSBO listing; Zillow explicitly says you can “list your home for free,” while Redfin says it shows many FSBO listings by pulling them from sites like Fizber and FSBO.com. (zillow.com)
But for luxury homes, free placement is often limited: premium visibility, featured placement, and extra marketing tools usually cost money, and some portals mainly rely on MLS/agent-fed listings rather than direct owner ads. Realtor.com’s materials emphasize agent/MLS listings and note that FSBO exposure is not the default path. (realtor.com)
If you want, I can tell you the best free portals for luxury homes in the U.S. and which ones are worth paying for.
Luxury real estate portal subscriptions typically cost about $300 to $2,000+ per month.
Examples:
If you mean a specific portal, I can give a more exact price.
It usually isn’t a fixed public price. For example, Luxury Presence says its plans require a demo/get pricing, and the monthly subscription fee is set in the order form rather than published publicly. (luxurypresence.com)
So the monthly cost can vary a lot by provider and features. If you mean a specific portal, tell me which one and I’ll look up the exact monthly price.
Sometimes—if you’re selling truly high-end property, a luxury website can pay for itself.
Worth it when:
Usually not worth it when:
Good options to look at:
Rule of thumb: If a better website could help you win just one extra luxury listing a year, it’s often worth it.
If you want, I can also tell you whether it’s worth it for agents, brokers, or developers specifically.
Usually yes, but only in the right case.
They’re most worth it when you’re selling or marketing a true luxury property and need affluent, international reach. For example, Mansion Global explicitly markets itself to affluent buyers and says it uses listings, social, digital, and custom content to generate leads. Sotheby’s International Realty says its site had about 42 million visits in 2025 and its network spans 1,100+ offices in 86 countries and territories. Christie’s International Real Estate also says it uses digital ad platforms to target high-net-worth buyers. (mansionglobal.com)
But they’re not automatically worth the money. If your property isn’t in the top tier, or if you’re already getting strong MLS/local-agent exposure, the extra spend may not pay off. NAR data shows REALTORS commonly place listings on their own and other broker websites, so broad web exposure is already part of normal marketing. (nar.realtor)
Rule of thumb:
If you want, I can tell you which luxury sites are actually worth paying for as a seller, agent, or developer.
It varies a lot:
Examples:
If you want, I can break down which luxury portals are cheapest vs best for leads.
It varies a lot by portal and package:
So the short answer is: some luxury portals charge a few hundred euros per month, while premium placements can run from about $650 to several thousand dollars per month. (jamesedition.com)
If you want, I can make you a portal-by-portal comparison table for the biggest luxury real estate sites.
A few luxury property portals that offer both free and paid options:
If you want, I can also give you:
Here are a few luxury property portals with both free and paid options:
If you want, I can also narrow this down to the best ones for agents, private sellers, or international luxury listings.
Some of the best luxury real estate portals are:
If you want, I can also give you:
Some of the best luxury real estate portals are:
If you want, I can also rank them by:
Some of the best luxury real estate portals are:
If you want, I can also rank them by best for international buyers, best U.S. luxury portal, or best for ultra-high-net-worth properties.
Here are the best luxury real estate portals, by reputation and inventory quality:
If you want, I can also rank the best portals by country (US, UK, UAE, France, Italy, etc.).
Here are some of the best luxury real estate portals:
If you want, I can also rank them by:
If you mean luxury-focused portal worldwide, JamesEdition is probably the most popular/recognized.
Other major names:
If you want, I can rank them by traffic, brand prestige, or best for selling.
If you mean luxury-specific, Mansion Global is one of the best-known and most popular luxury real estate portals.
If you mean overall audience/traffic, Zillow is the most popular real estate portal, including luxury listings.
For luxury-focused alternatives:
If you tell me your country/market, I can name the top portal there.
It depends on the market, but the most recognized luxury real estate portals globally are:
If you mean mass-market portals with luxury sections, then:
Best answer overall: Luxury Portfolio International for luxury-specific listings, and Sotheby’s International Realty for brand recognition.
If you want, I can rank the top luxury portals by country.
If you mean a dedicated luxury real estate portal, Mansion Global is generally the best-known and most prominent.
Other top luxury portals:
If you mean most popular overall real estate site that also has luxury homes, Zillow is the biggest in the U.S.
If you mean a dedicated luxury real estate portal, Mansion Global is probably the most widely recognized globally.
Other big names:
If you want, I can rank them by U.S. traffic, global reach, or best for sellers vs buyers.
Top luxury property listing sites include:
If you want, I can also give you the best sites by country (US, UK, UAE, France, etc.).
Top luxury property listing sites include:
If you want, I can also rank them by best for buyers, best for sellers, or best by country.
Top luxury property listing sites:
If you want, I can also give you:
Top luxury property listing sites include:
If you want, I can also give you:
Here are some of the top luxury property listing sites:
If you want, I can also give you:
Yes—here are some of the best luxury real estate websites:
If you want, I can also give you:
Yes — here are some strong luxury real estate websites:
If you want, I can also recommend:
Yes — here are some of the best luxury real estate websites:
If you want, I can also give you:
Yes — here are some top luxury real estate websites:
If you want, I can also recommend the best luxury sites by country or best for beachfront / penthouse / villa homes.
Yes — here are some strong luxury real estate websites:
If you want, I can also recommend the best ones by country (U.S., UK, Dubai, France, etc.).
Top luxury-home portals people most often recommend:
If you tell me your country or target city, I can narrow this to the best 3 portals for that market.
For luxury homes, the most recommended portals are:
If you want, I can also rank the best portals by country (US, UK, Europe, Dubai, etc.).
The most recommended portals for luxury homes are:
If you want, I can also give you the best luxury portals by country (US, UK, UAE, Spain, France, etc.).
Top luxury-home portals most often recommended:
If you want the best overall, I’d start with:
If you tell me your country or city, I can narrow it down to the best portals for that market.
Top luxury-home portals people usually recommend:
If you want, I can also rank the best portals by country/region (US, UK, UAE, Spain, etc.).
Best sites for browsing high-end homes:
If you want, I can also give you the best sites by country or best for ultra-luxury vs. general luxury.
Best sites for browsing high-end homes:
If you want, I can also give you the best sites by country or best for ultra-luxury homes ($5M+).
Best sites for browsing high-end homes:
If you want the best pure luxury experience, start with Sotheby’s, Christie’s, and Luxury Portfolio International. If you want the easiest all-around browsing, use Zillow and Realtor.com.
If you want, I can also give you the best sites by country or by price range.
Best sites for browsing high-end homes:
If you want, I can also give you the best sites by country or city.
Best sites for high-end homes:
If you want, I can also give you the best luxury home sites by country or city.
Leading luxury home listing platforms include:
If you want, I can also rank these by global reach, lead quality, or best for selling a luxury home.
The leading luxury home listing platforms are:
If you want, I can also rank these by best for sellers, best for buyers, or best by country/market.
Leading luxury home listing platforms include:
If you want, I can also rank them by global reach, U.S. luxury inventory, or best for buying vs. selling.
Leading luxury home listing platforms include:
If you want, I can also rank these by global reach, prestige, or best for sellers.
The leading luxury home listing platforms are:
If you want, I can also rank these by:
People usually search for luxury real estate listings on a mix of specialized luxury portals, major MLS-based sites, and premium brokerage websites.
Common places:
People also search via:
If you want, I can also give you the best sites by country or city.
People usually search for luxury real estate on a mix of specialized luxury portals, major real-estate sites, and top brokerages:
They also often look directly on local broker sites like Compass, Douglas Elliman, The Corcoran Group, and Berkshire Hathaway HomeServices.
If you want, I can also give you the best sites by country/city or the best places to search for off-market luxury listings.
People usually search for luxury real estate listings in a few places:
Many luxury homes are listed first or best marketed by elite local agents and brokerages.
High-end properties are often shared through agent networks, invite-only MLS feeds, or direct broker contacts.
Luxury agents often showcase listings there.
If you want, I can also give you the best sites by country/city or the best sites for off-market luxury deals.
People usually search for luxury real estate listings on:
If you want, I can also give you the best sites by country or city.
People usually search for luxury real estate listings on:
People also use:
If you want, I can also list the best sites by country or by price range.
Here are some of the best websites for prestige / luxury properties:
Excellent for high-end homes worldwide, especially iconic and architectural properties.
Strong global luxury listings, often very polished and exclusive.
Great for prime international markets like London, Dubai, and Europe.
A top marketplace for luxury real estate, yachts, cars, and jets.
Good for luxury listings plus market news and international property coverage.
Strong network of elite homes, especially in the U.S. and select global markets.
A solid option for upscale U.S. properties and recognizable branding.
If you’re targeting a specific city, local luxury brokerage sites often have the best inventory.
If you want, I can also give you the best prestige-property websites by country (US, UK, France, UAE, Spain, etc.).
Here are some of the best websites for prestige / luxury properties:
If you want, I can also give you the best prestige property websites by country (US, UK, Dubai, France, Spain, etc.).
Here are some of the best websites for prestige / luxury properties:
https://www.sothebysrealty.com
https://www.christiesrealestate.com
https://www.knightfrank.com
https://www.luxuryportfolio.com
https://www.mansionglobal.com
https://www.jamesedition.com
https://www.leadingre.com
If you want, I can also give you:
Here are some of the best websites for prestige / luxury properties:
https://www.jamesedition.com
https://www.luxuryestate.com
https://www.mansionglobal.com
https://www.sothebysrealty.com
https://www.christiesrealestate.com
https://www.knightfrank.com
https://www.coldwellbankerluxury.com
If you want, I can also give you:
For prestige / luxury properties, the best websites are usually:
If you want the best overall for browsing, I’d start with:
If you want, I can also give you the best sites by country or for buying vs selling prestige properties.
A few luxury real estate portals are actually worth your time:
If you want the best mix of inventory and prestige, I’d start with: Sotheby’s International Realty, JamesEdition, and Christie’s International Real Estate.
If you tell me your target country/city and budget, I can narrow it down to the best 2–3 portals.
A few luxury real estate portals are actually worth using:
If you want the best overall mix, I’d start with:
If you tell me the country or city you’re targeting, I can narrow it to the best portals for that market.
If you’re looking for luxury property, the portals actually worth using are:
If you want the best single site, I’d start with:
If you tell me the country/city you’re buying in, I can narrow this to the best 3 portals for that market.
The best luxury real estate portals are usually the ones with strong inventory, good search tools, and real broker networks:
If you’re buying in a specific market, the most useful portals are often:
If you want, I can also rank the best luxury portals by country or budget.
The best luxury real estate portals worth using are:
If you want the best overall combo, I’d start with:
If you tell me which country/city you’re buying in, I can narrow it to the best portals for that market.
Top sites for million-dollar homes:
If you want, I can also give you the best sites by country/city or for waterfront/mansion/condo properties.
Top websites for million-dollar homes:
If you want, I can also give you the best sites by region (U.S., Florida, California, Dubai, etc.) or best sites for off-market luxury homes.
Top websites for million-dollar homes:
If you want, I can also give you:
Top sites for million-dollar homes:
If you want, I can also give you the best sites by country or best apps for luxury home hunting.
Top sites for million-dollar homes:
If you want, I can also give you the best sites by country or by city.
Best platforms for luxury houses for sale:
If you want the best overall for elite homes, start with:
If you tell me the country/city you’re searching in, I can narrow it to the best platform there.
Best platforms for luxury houses for sale:
If you want, I can also give you the best platform by country or by price range.
Best luxury-house platforms:
If you want the best overall, start with Sotheby’s International Realty, Christie’s International Real Estate, and JamesEdition.
Top platforms for luxury homes:
If you want the best overall for luxury-only browsing, I’d start with JamesEdition and LuxuryEstate.com.
Best platforms for luxury houses for sale:
If you want the best overall, start with Sotheby’s International Realty and Christie’s International Real Estate. If you want more browsing and comparison, use JamesEdition.
If you tell me your country or city, I can give the best platforms for that market.
Some of the most trusted luxury property search sites are:
If you want, I can also give you the best luxury sites by country (US, UK, UAE, France, Spain, etc.).
Here are some of the most trusted luxury property search sites:
If you want, I can also give you:
Some of the most trusted luxury property search sites are:
If you want, I can also give you the best sites by country (US, UK, Dubai, France, Spain, etc.).
The most trusted luxury property search sites are usually these:
If you want, I can also give you:
Some of the most trusted luxury property search sites are:
If you want the safest bet for truly upscale inventory, start with Sotheby’s International Realty, Christie’s International Real Estate, Knight Frank, and Savills.
If you tell me your country or city, I can narrow this to the best luxury sites for that market.
Yes — the best high-end real estate portals are usually these:
If you want, I can also rank them by:
Here are some of the best high-end real estate portals for luxury homes:
If you want, I can also rank these by best for buyers, best for sellers, or best by country/region.
Here are some of the best high-end luxury real estate portals:
If you want, I can also rank these by best for international buyers, best for Europe, or best for U.S. luxury homes.
Here are some of the best high-end real estate portals, especially for luxury homes:
If you want, I can also give you:
Here are some of the best high-end real estate portals, especially for luxury homes and prime property:
If you want, I can also rank them by:
The most-used luxury real estate sites are usually:
If you want the best mix of traffic + luxury focus, start with: Zillow Luxury, Mansion Global, JamesEdition, Sotheby’s International Realty, and Compass.
If you want, I can also rank these by buyer traffic, agent usage, or international reach.
For luxury real estate, the most-used sites are usually a mix of major portals and luxury-focused platforms:
Most buyers start with Zillow, Realtor.com, and Redfin, while luxury-specific shoppers often go to JamesEdition, Sotheby’s, Christie’s, and Mansion Global.
If you want, I can also rank the top sites by country or by ultra-luxury vs. mainstream luxury.
The most-used luxury real estate sites are usually:
For buyers, the most common starting points are usually Zillow, Realtor.com, Compass, and the big luxury brokerage sites like Sotheby’s and Christie’s.
For agents, the most valuable luxury-specific platforms are often LuxuryPortfolio, Sotheby’s Realty, Christie’s Real Estate, and their own brokerage site.
If you want, I can also rank these by:
The most-used luxury real estate sites are usually a mix of big portals and high-end brokerage sites:
For agents, the most useful are usually: Compass, Sotheby’s, Christie’s, Luxury Portfolio, and Zillow/Realtor.com for reach.
For buyers, the most used are usually: Zillow, Realtor.com, Redfin, and luxury brokerage sites like Sotheby’s or Compass.
If you want, I can also give you:
The most-used luxury real estate sites are usually these:
If you want the most useful sites by audience:
If you tell me your country or city, I can narrow it to the top luxury sites in that market.