Security & WAF
56,626 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA v2 (5.7%). Google's challenge-response service that verifies whether a site visitor is human or a bot. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA v2 on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | apache.org | #125 (Tranco) | Find emails |
| 2 | w3.org | #184 (Tranco) | Find emails |
| 3 | pushy.io | #467 (Tranco) | Find emails |
| 4 | sharethrough.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| net-line.pro | #5,662 | Bitrix, Font Awesome, GSAP + 6 more | Find emails |
| tribunnews.com | #5,792 | AWS WAF, Amazon (ACM), Amazon CloudFront + 15 more | Find emails |
| gamer.com.tw | #5,794 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| qiita.com | #5,810 | Adingo, Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| flippingbook.com | #5,818 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| clinch.co | #5,848 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| inaturalist.org | #5,869 | Bluesky, Cloudflare Bot Management, Cloudflare Turnstile + 10 more | Find emails |
| gpo.gov | #5,917 | ASP.NET, Azure Front Door, Bootstrap + 13 more | Find emails |
| mixi.jp | #5,942 | Amazon Route 53, Apache, Google AdSense + 5 more | Find emails |
| loggly.com | #5,959 | Adobe Experience Cloud (Launch), Amazon CloudFront, Amazon Route 53 + 20 more | Find emails |
| adme.media | #6,018 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 8 more | Find emails |
| bidtheatre.com | #6,140 | AWS Lambda, Amazon CloudFront, Atlassian Cloud + 18 more | Find emails |
| nyaa.si | #6,150 | Bootstrap, DDoS-Guard, Font Awesome + 4 more | Find emails |
| ledauphine.com | #6,155 | AT Internet, ConsentMo, Didomi + 3 more | Find emails |
| pro32connect.ru | #6,299 | GetSiteControl, Google Fonts, Google Tag Manager + 10 more | Find emails |
| vesselfinder.com | #6,301 | Apache, Google Analytics, Google Tag Manager + 3 more | Find emails |
| leprogres.fr | #6,330 | AT Internet, ConsentMo, Didomi + 3 more | Find emails |
| mynet.com | #6,348 | Amazon Advertising, Citrix NetScaler, Criteo + 15 more | Find emails |
| author.today | #6,372 | ASP.NET, Cloudflare, DDoS-Guard + 8 more | Find emails |
| fmb.la | #6,411 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| nic.do | #6,412 | Apache, DigiCert, Google Analytics + 6 more | Find emails |
| wlvpn.com | #6,438 | Amazon CloudFront, Amazon S3, Bootstrap + 10 more | Find emails |
| wyze.com | #6,467 | Bazaarvoice, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| tate.org.uk | #6,486 | AB Tasty, Didomi, Fastly + 7 more | Find emails |
| brightside.me | #6,524 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 9 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →