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De Dolfijn • Zwemvereniging De Dolfijn Amsterdam — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Swimming →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
knzb.nl ↗	55 match shared topic	KNZB \| Homepage	Netherlands nl	swimming	robotsllmsaihumans	emailphone	partial · 8
nrz-nl.nl ↗	55 match shared topic	Home - Nationale Raad Zwemveiligheid	Netherlands nl	swimming WordPress	robotsllmsaihumans	emailphone	none
zwemscore.nl ↗	55 match shared topic	Zwemscore \| Het meest complete leerlingvolgsysteem - Zwemscore	Netherlands nl	swimming	robotsllmsaihumans	email phone	none
allesoverzwemles.nl ↗	55 match shared topic	Alles over zwemles en leren zwemmen	Netherlands nl	swimming WordPress	robotsllmsaihumans	emailphone	none
reddingsbrigade.nl ↗	55 match shared topic	Reddingsbrigade Nederland	Netherlands nl	swimming	robotsllmsaihumans	emailphone	none
zwemfed.be ↗	55 match shared topic	Vlaamse zwemfederatie	Belgium nl	swimming Drupal	robotsllmsaihumans	emailphone	none
lago.be ↗	55 match shared topic	LAGO \|	Belgium nl	swimming Drupal	robotsllmsaihumans	emailphone	none
sportbedrijfrotterdam.nl ↗	55 match shared topic	Iedereen in beweging — Sportbedrijf Rotterdam	Netherlands nl	swimming	robotsllmsaihumans	email phone	none
easyswimportal.com ↗	55 match shared topic	EasySwim Nederland	nl	swimming	robotsllmsaihumans	emailphone	none
jdlkunststoffen.nl ↗	55 match shared topic	Kunststof Zwembaden & Vijvers op Maat \| JDL Kunststoffen	Netherlands nl	swimming WordPress	robotsllmsaihumans	emailphone	none
envoz.nl ↗	55 match shared topic	Home	Netherlands nl	swimming Contao	robotsllmsaihumans	emailphone	none
zwembadstore.com ↗	55 match shared topic	Intex Zwembad kopen? \| Zwembadstore.com	nl	swimming Lightspeed	robotsllmsaihumans	emailphone	none
sportingenk.be ↗	28 match shared topic	Startpagina - Sport in Genk	Belgium nl	swimming	robotsllmsaihumans	emailphone	none
zwemwater.nl ↗	28 match shared topic	Zwemwater.nl \| Vind een zwemplek	Netherlands nl	swimming WordPress	robotsllmsaihumans	emailphone	none
deichwelle.de ↗	55 match shared topic	Deichwelle Neuwied: Familienbad trifft Premium-Sauna	Germany de	swimming	robotsllmsaihumans	emailphone	none
dlrg.de ↗	55 match shared topic	Deutsche Lebens-Rettungs-Gesellschaft e.V. (DLRG) \| DLRG e.V.	Germany de	swimming TYPO3	robotsllmsaihumans	emailphone	none
usaswimming.org ↗	55 match shared topic	Home	en	swimming	robotsllmsaihumans	emailphone	none
pooldues.com ↗	55 match shared topic	PoolDues.com – Billing, Check-In, Reservations and Content management made just for Swim and Tennis clubs, or HOA's with pools.	en	swimming WordPress	robotsllmsaihumans	emailphone	partial · 5

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.