Dutch adult marketplace SEO: a working order for platforms serving the Netherlands

1Sort every page type first

Almost every later decision depends on this sorting. Once it is agreed, crawl rules, sitemaps and internal links can all follow it.

2Make the DSA visible on listings

Since 17 February 2024 the Digital Services Act has required marketplaces that let consumers buy from traders to collect and check trader details, and to make key information available to buyers. Showing that information clearly on listing and seller pages is a legal matter first, but it also answers the question buyers ask before trusting an unfamiliar seller. Other DSA duties that shape promotion are summarised on platform marketing.

3Plan for Dutch and English together

Decide early which sections need both languages, give each language its own addresses, and link them with hreflang. Retrofitting a second language onto a platform built for one is far harder than planning both from the start. Our Dutch search service covers the detail.

4Set a standard for listings

• A minimum length and a unique description written by the seller, with guidance on what to include.
• Safe-for-work photos on anything that can appear in search.
• Structured fields for price, condition, location and delivery, so pages are useful and consistent.
• A clear rule for what happens when a listing expires or sells.

5Measure what search sends

Break impressions and clicks down by page type as well as reading the site total. If filter pages are gaining impressions while categories are not, the sorting has slipped. The architecture side is covered on marketplace SEO.

6Trader details, collected properly

For marketplaces where consumers buy from traders, the DSA asks the platform to collect and make reasonable efforts to check each trader's name, address, telephone and email, an identity document, any trade register number and a self-certification that they will only offer products complying with EU law. Some of this is then shown to buyers. Build the collection into seller onboarding rather than chasing sellers later, store it securely, and review it when sellers change details. Buyers who can see who they are dealing with trust listings more, and that shows in enquiries and sales.

7The cold-start problem

A marketplace with few listings has little for search engines to rank and little for buyers to find. SEO cannot fix an empty shelf. In the first months, put effort into recruiting a core of good sellers in a few categories and places, and build pages only where supply exists. Thin category and place pages created ahead of supply tend to be ignored by search engines and abandoned by visitors. Grow pages as listings grow.

8A Rotterdam marketplace, year one

Hypothetically. A marketplace for lingerie and wellness products launches in Rotterdam with forty sellers. In the first quarter it builds category pages for the five categories with most listings, adds trader details to every seller page and shows price history correctly. In the second it adds English versions of the top categories after seeing English queries in Search Console. In the third it introduces place pages for the cities with enough sellers. By the fourth, search brings a steady share of buyers, and sellers can see where enquiries come from. Every step followed supply rather than leading it.

9ACM guidance on online selling

The ACM, which enforces Dutch consumer law, has published guidelines on protecting consumers online, covering misleading presentation, pressure tactics and default choices that steer buyers. Marketplaces that build listing pages and checkout flows with that guidance in mind avoid many practices that both regulators and users dislike. A short read of the ACM's guidance alongside your own pages is a useful exercise before any redesign.

10A twelve-week plan

11Mistakes we see on Dutch marketplaces

• Thousands of filter URLs indexed while new listings wait to be crawled.
• Expired listings left live for months, with nothing to buy.
• English pages machine-translated from Dutch, or the reverse, without review.
• Seller pages indexed by default, exposing people who never chose to be found.
• Promoted listings that look identical to ordinary ones.

12Signs it is working

Within a quarter, the index should hold mostly listings, categories and places with real supply, and far fewer filter or expired URLs. Within two, search visits per active listing should rise and sellers should see more enquiries. If neither moves, look again at what search engines can reach before writing more content. The service behind this report is marketplace SEO.

13Promoted listings that stay honest

Many marketplaces earn from promoted listings. Label them clearly as paid, explain in the ranking description how promotion affects order, and keep promoted listings to the same quality standard as the rest. Buyers who discover that the top results were paid without being told stop trusting the results altogether, and both the DSA and EU consumer rules expect the label.

14Sellers as partners in SEO

Sellers write most of a marketplace's content. Give them simple guidance: a clear title using the words buyers search, a description in their own words, accurate details, good photos that follow the platform's rules, and prompt updates when something changes. Show sellers how their listings perform in search, and reward complete, well-maintained listings with better placement. When sellers understand what helps buyers find them, the whole platform improves. Our report on profile pages covers seller pages.

15More on this

Structure is covered in listing site architecture, filters in marketplace filters, languages in Dutch and English search, and model choice in membership versus listings.

16Reporting sellers can use

A short monthly report for each seller, showing views from search, enquiries and how their listings compare with similar ones, turns SEO into something sellers care about. Sellers who see real results keep listings current and recommend the platform to others.

17Questions to settle first

• Which page types bring buyers today, and which only add crawl?
• Are trader details collected, checked and shown where required?
• How do buyers know which results are paid?
• Where is supply strong enough for place pages?

18In one line

Recruit supply first, show buyers exactly who they are dealing with, keep crawl on the pages with something to offer, and let sellers see clearly what search brings them each month.

19Background sources

• Autoriteit Consument & Markt (ACM)
• The European Commission
• Google Search Central documentation

Links to the bodies and studies mentioned, so the facts can be traced back.

QQuestions