similar sites

Browse

Pricing AI Report

Tools

🚀Submit Your Site to AIPush your URL to AI search engines 🛰️AI Bot ObservatoryEvery AI crawler & who blocks it 📇AI Crawler Database900+ AI user agents + robots.txt gen ⚖️AI Crawler ComparisonCompare two AI crawlers head-to-head 💰AI Licensing / Pay-Per-CrawlWho can charge AI crawlers — Pay-Per-Crawl 🎛️AI Robots.txt Policy BuilderGoal-based robots.txt (cite me, don't train)🤖AI Crawler CheckerSee which AI bots your site blocks 🎯AI Readiness CheckerScore your site 0–100 for AI 🔎Similar Site SearchFind websites like any domain 🔗Backlink CheckerWho links to any site — free All tools →

Toplists Browse free →

Sites similar to opcw.org

Opcw alternatives & similar sites

Organisation for the Prohibition of Chemical Weapons — 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 Non Profit Organizations →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
concern.net ↗	62 match shared topic	Concern Worldwide \| International humanitarian & development organisation	en	non-profit-organizations Drupal	robotsllmsaihumans	emailphone	none
scvo.scot ↗	62 match shared topic	Scottish Council for Voluntary Organisations	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
icheme.org ↗	62 match shared topic	Institution of Chemical Engineers – Advancing Chemical Engineering Worldwide - IChemE	en	non-profit-organizations Shopify	robotsllmsaihumans	emailphone	none
sectsco.org ↗	62 match shared topic	Шанхайская организация сотрудничества \| 上海合作组织 \| The Shanghai cooperation organisation	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
volunteer.ie ↗	62 match shared topic	Volunteer Ireland: National Volunteer Organisation	Ireland en	non-profit-organizations WordPress	robotsllmsaihumans	email phone	none
sigbi.org ↗	62 match shared topic	Soroptimist International GBI (SIGBI) - a women's organisation	en	non-profit-organizations WordPress	robotsllmsaihumans	emailphone	none
apache.org ↗	55 match shared topic	Welcome to The Apache Software Foundation \| Apache Software Foundation	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
doi.org ↗	55 match shared topic	Home Page	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
wikimedia.org ↗	55 match shared topic	Wikimedia	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
zeffy.com ↗	55 match shared topic	Zeffy \| 100% Free Fundraising Software	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
gofundme.com ↗	55 match shared topic	GoFundMe \| The #1 Crowdfunding and Fundraising Platform	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
candid.org ↗	55 match shared topic	Research nonprofits, funders, and grants \| Candid	en	non-profit-organizations WordPress	robots llmsaihumans	emailphone	none
charitynavigator.org ↗	55 match shared topic	Charity Ratings and Donor Resources \| Charity Navigator	en	non-profit-organizations Adobe Experience Manager	robotsllmsaihumans	emailphone	none
justgiving.com ↗	55 match shared topic	Online fundraising donations and ideas - JustGiving	en	non-profit-organizations	robots llmsaihumans	emailphone	none
gofund.me ↗	55 match shared topic	GoFundMe \| The #1 Crowdfunding and Fundraising Platform	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
qgiv.com ↗	55 match shared topic	A Unified Fundraising Platform for Nonprofits \| Bloomerang Fundraising	en	non-profit-organizations	robotsllmsaihumans	emailphone	none
us.org ↗	55 match shared topic	.US.ORG \| The Open Domain for Purpose-Driven U.S. Organizations	United States~ en	non-profit-organizations	robotsllmsaihumans	emailphone	none
typo3.org ↗	55 match shared topic	TYPO3 Project and Governance — Democratic Open Source - TYPO3 Project	en	non-profit-organizations TYPO3	robotsllmsaihumans	emailphone	none

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.