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 |
|---|---|---|---|
| arquitecturaviva.com | #142,128 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| friktoria.net | #142,158 | Apache, Joomla, Let's Encrypt + 2 more | Find emails |
| adegalabrugeira.pt | #142,163 | Cloudflare edge/CDN, Fancybox, Let's Encrypt + 4 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| autoua.net | #142,167 | Admixer, Bootstrap, Django + 10 more | Find emails |
| registrodeimoveis.org.br | #142,182 | Adopt, Bootstrap, Cloudflare + 11 more | Find emails |
| gov4c.kz | #142,199 | Bitrix, Google Analytics, Google Fonts + 9 more | Find emails |
| positivesingles.com | #142,201 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| asbmb.org | #142,241 | ASP.NET, Adobe Fonts (Typekit), Axios + 18 more | Find emails |
| wasi.co | #142,287 | Amplitude, Bootstrap, Cloudflare + 17 more | Find emails |
| chefstore.com | #142,296 | Adobe Fonts (Typekit), Font Awesome, Google Hosted Libraries + 12 more | Find emails |
| pxg.com | #142,307 | Amazon Route 53, Cloudflare edge/CDN, Klaviyo + 7 more | Find emails |
| assouline.com | #142,333 | AdRoll, Adobe Fonts (Typekit), Cloudflare edge/CDN + 11 more | Find emails |
| edebiyatdefteri.com | #142,376 | Cloudflare, Cloudflare edge/CDN, Fancybox + 16 more | Find emails |
| e-news.su | #142,407 | Cloudflare, DataLife Engine, Google Fonts + 7 more | Find emails |
| it-part.ru | #142,458 | Chart.js, Font Awesome, Google Fonts + 10 more | Find emails |
| rackbeat.com | #142,468 | Amazon (ACM), Amazon Route 53, Apache + 11 more | Find emails |
| dangerfield.com.au | #142,482 | Amazon Route 53, Cloudflare edge/CDN, Let's Encrypt + 3 more | Find emails |
| wemakescholars.com | #142,494 | Amazon (ACM), Apache, Bootstrap + 17 more | Find emails |
| nhc.com | #142,512 | ChatGPT Ads Pixel, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| splendidtable.org | #142,534 | Amazon (ACM), Amazon CloudFront, Apache + 6 more | Find emails |
| nefeshinternational.org | #142,630 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 5 more | Find emails |
| rif.org | #142,631 | Amazon (ACM), DoubleClick (Google Ads), Drupal + 7 more | Find emails |
| collabora.com | #142,644 | Amazon Route 53, Bluesky, DoubleClick (Google Ads) + 16 more | Find emails |
| ocoderre.com | #142,666 | Google Analytics, LiteSpeed, PHP + 3 more | Find emails |
| pickupforum.de | #142,702 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →