Security & WAF
56,180 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA v2 (5.6%). 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 |
|---|---|---|---|
| thethings.com | #82,840 | Google Analytics, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| asp.events | #82,842 | Amazon (ACM), Amazon Route 53, GSAP + 8 more | Find emails |
| ateliertrottinette.ch | #82,845 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 2 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| pall.com | #82,846 | Adobe Fonts (Typekit), Amazon Route 53, Apache + 12 more | Find emails |
| dynamic.domains | #82,847 | ASP.NET, Bootstrap, Google Analytics + 5 more | Find emails |
| mathewsons.co.uk | #82,849 | ASP.NET, Google Analytics, Google Fonts + 8 more | Find emails |
| animesuperhero.com | #82,852 | AddToAny, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| elcomsoft.com | #82,855 | Bootstrap, Google Analytics, Google Tag Manager + 6 more | Find emails |
| glassix.com | #82,860 | AWS Lambda, Amazon CloudFront, Atlassian Statuspage + 19 more | Find emails |
| hhchealth.org | #82,862 | Adobe Fonts (Typekit), DigiCert, Font Awesome + 8 more | Find emails |
| iepwriter.com | #82,887 | ASP.NET, Cloudflare, DigiCert + 7 more | Find emails |
| sonxeber.az | #82,916 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| oulfa.fr | #82,919 | All in One SEO, Apache, Font Awesome + 12 more | Find emails |
| lme.jp | #82,928 | Axios, DoubleClick (Google Ads), Font Awesome + 19 more | Find emails |
| atasunoptik.com.tr | #82,930 | Criteo, DigiCert, DoubleClick (Google Ads) + 8 more | Find emails |
| drsheths.com | #82,957 | Cloudflare, Cloudflare edge/CDN, GoKwik + 11 more | Find emails |
| biomaze.ir | #82,972 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| teamsg.in | #82,974 | Cloudflare edge/CDN, GetSiteControl, Google Tag Manager + 9 more | Find emails |
| odara.com.br | #83,005 | Apache, Google Maps, Google Tag Manager + 6 more | Find emails |
| ashleyhomestore.ca | #83,021 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 8 more | Find emails |
| suipick.io | #83,022 | Bootstrap, Chart.js, Cloudflare + 7 more | Find emails |
| rentacyberfriend.com | #83,024 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 15 more | Find emails |
| mersenne.org | #83,039 | DoubleClick (Google Ads), Google Analytics, Google Hosted Libraries + 7 more | Find emails |
| cue-monitor.jp | #83,041 | Amazon (ACM), Amazon CloudFront, Apache + 6 more | Find emails |
| kalahariresorts.com | #83,055 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →