Marketplace SEO
Adult marketplace SEO that keeps thousands of pages under control
Adult marketplace SEO is mostly a matter of control. A marketplace can generate far more pages than any search engine wants to crawl, through filters, sorting and listings that come and go. We help lawful adult marketplaces and listing sites in the Netherlands decide which pages deserve to be found, build those well, and keep the rest out of the way.
- C1Categoryindexed
- F1Filterheld back
- F2Sortheld back
- L1Listingindexed
- L2Expiredremoved
- F3Empty filter404
Four layers of a marketplace
- CategoriesA shallow, clear tree that mirrors how Dutch and English searchers describe what they want
- FiltersUseful to visitors, but mostly kept out of crawling so they do not flood the index
- ListingsUnique titles, real descriptions and seller details, not near-identical templates
- LifecycleA plan for new, sold and expired listings, so the index stays clean
Filters get a lab report of their own: marketplace filters and SEO.
What Google recommends for filters
In December 2024 Google published guidance on faceted navigation, noting that it is by far the most common cause of the overcrawling problems site owners report.
| Choice | Google's advice |
|---|---|
| Block crawling | Disallow filter parameters in robots.txt, or use URL fragments (#) for filters |
| If indexing some | Use the standard & separator and a consistent filter order |
| Empty results | Return a 404 for filter combinations with no results |
| Canonical and nofollow | Canonical tags consolidate signals slowly; nofollow only helps if applied to every link |
From Google Search Central documentation on managing crawling of faceted navigation URLs. How the platform is promoted is covered on platform marketing.
Not in our samples
- Auto-generated city or keyword pages with nothing on them
- Scraped or duplicated listings from other sites
- Explicit listing content on pages meant for search
- Classifieds whose main trade is sex work or escorting
The life of a listing
| Stage | What search should see |
|---|---|
| New | An indexable page with full details, linked from its category |
| Active | The same page, updated, with stock or dates current |
| Sold out or expired, may return | Page kept live with a clear status and links to alternatives |
| Gone for good | A 404 or 410, or a redirect to a close replacement where one exists |
| Removed for breaking rules | Taken down promptly and returned as not found |
Seller pages and listing pages
Seller pages and listing pages compete if they say the same thing. Give each a job: listing pages describe one item or event in detail; seller pages describe the seller, show their current listings, reviews and, where the law requires, trader details. Keep personal information on seller pages to what the seller chooses to publish, and let sellers decide whether their page is indexed at all. Our report on profile pages covers the privacy side.
Duplicate listings
Sellers often copy the same text across several listings or paste descriptions from other sites. Duplicates confuse search engines and buyers alike. Detect near-identical listings at upload, ask sellers to write their own descriptions, and consolidate true duplicates. Where many sellers sell the same product, a shared product page with a list of sellers may serve buyers better than dozens of near-identical listings.
Places across the Netherlands
Place pages work when there is real supply in that place. Pages for Amsterdam, Rotterdam, The Hague, Utrecht and Eindhoven may hold enough listings; pages for small towns with one or two usually do not. Generate place pages only above a minimum number of active listings, and let smaller places fold into their province. Each page should show its listings first, with a short introduction that helps buyers choose.
Structured data for listings
Listings for products can carry product markup with price and availability; listings for events can carry event markup with dates and location. Both help search engines understand the page, and both must match what the page shows. Leave markup off pages behind age assurance or login, and remove it when a listing expires. Explicit listings are not eligible for rich results, so keep the pages meant for search safe for work.
Moderation is part of SEO
Spam, scams and unlawful listings drag a marketplace down in search as surely as they drive users away. The DSA expects an easy way to report illegal content and a reasoned response when content is removed. Build moderation into the listing workflow: checks at upload, a visible report button on every listing, and a queue someone reviews daily. Removed listings should disappear from search quickly, returning not found rather than lingering. Our report on listing site architecture shows how moderation fits the structure.
Internal search pages
Every marketplace has an internal search box, and every search can create a URL. Those result pages are almost never worth indexing: they duplicate category pages and multiply endlessly. Keep internal search results out of the index and out of sitemaps, and use what people type there as research for categories and place pages that do deserve to rank. Our Dutch marketplace report sets out the order of work.
Category pages that hold supply together
Category pages are where most buyers start. Give each a short introduction that helps people choose, filters that match how people narrow their search, listings sorted with active and well-described ones first, and a link to a helpful guide. Avoid creating categories with only a handful of listings; merge them into a parent until supply grows. Strong categories also give sellers a reason to list, because buyers can find them there.
URLs that survive growth
Choose URL patterns that will still make sense with ten times as many listings: a stable category path, a place where relevant, and a unique, readable listing slug. Avoid putting changing details, such as prices or dates, in URLs. When a platform restructures, map every indexed URL to its new home and redirect once. A stable structure keeps the links and rankings listings have earned.
Sitemaps that match reality
A sitemap is a list of pages you are asking search engines to find, so include only those that deserve it: active listings, categories and place pages above the supply threshold, guides and core pages. Generate them automatically, remove expired and removed listings promptly, and split them by type and language so Search Console shows how each is indexed. A sitemap full of dead listings tells search engines the platform is poorly maintained.
Spam sellers and search
A few spam sellers can publish thousands of thin listings in days, filling the index with pages that never convert. Rate-limit new seller accounts, check each new seller's first listings by hand, and remove patterns quickly. Search engines judge a platform partly by its worst pages; keeping those out matters as much as improving the very best.
The marketplace scorecard
| Figure | What it shows |
|---|---|
| Indexed listing and category pages | Whether the right pages are found |
| Crawl spent on filter URLs | Whether crawling is being wasted |
| Search visits per active listing | How much search supports supply |
| Expired pages still indexed | Clean-up work outstanding |
Reported monthly. Fees are under pricing, and filters in depth in our report on marketplace filters.
Questions
Why do filters cause so many problems?
Every combination of filters can create a new URL. Google says faceted navigation is by far the most common source of the overcrawling issues site owners report.
Should filter pages be blocked or indexed?
Most should be kept out of crawling, through robots.txt or URL fragments. A few that match real searches can be indexed if they follow Google's guidance, including a 404 for combinations with no results.
What should happen to an expired listing?
If it is gone for good, let it return a clear not-found response or point people to a genuinely similar listing. Sending everything to the home page helps no one.
Do you build the platform itself?
No. We design the search architecture and work with your developers, who make the changes.
What should happen to expired listings?
Keep pages for items or events that may return, with a clear status. Return a 404 or 410 for those gone for good, or redirect to a close replacement where one exists.
Platform search architecture review
See how search engines read your platform
Send us your platform and the markets you serve. We examine how listings, categories, filters and profiles are crawled and indexed in Dutch and English, and what EU and Dutch rules mean for your pages, then return a short written plan. Free, and with no obligation.
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