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 |
|---|---|---|---|
| fastdemocracy.com | #215,301 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| foco.com | #215,312 | AdRoll, Amazon Route 53, Attentive + 10 more | Find emails |
| spacecrafted.com | #215,329 | Adobe Fonts (Typekit), DigiCert, Google Analytics + 4 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| lttstore.com | #215,333 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| matrixbcg.com | #215,360 | Cloudflare edge/CDN, Let's Encrypt, Microsoft 365 + 4 more | Find emails |
| airedealmeria.com | #215,372 | Adform, Apache, Bootstrap + 16 more | Find emails |
| rr.pt | #215,378 | Azure API Management, Azure DNS, Azure Front Door + 10 more | Find emails |
| xbrl.org | #215,382 | Apache, Bootstrap, Font Awesome + 9 more | Find emails |
| mydnshost.co.uk | #215,416 | Apache, Bootstrap, Fastmail + 9 more | Find emails |
| ml-cc.com | #215,422 | AOS, Cloudflare, Font Awesome + 12 more | Find emails |
| 2link.be | #215,426 | Awin, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| impextrom.com | #215,427 | Bootstrap, Fancybox, Google Analytics + 10 more | Find emails |
| motocentral.co.uk | #215,429 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| thetallstreetjournal.com | #215,434 | CJ Affiliate, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| stirworld.com | #215,456 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| lensmarket.com | #215,462 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 12 more | Find emails |
| stiiizy.com | #215,463 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 10 more | Find emails |
| airedevallromanes.com | #215,499 | Adform, Apache, Bootstrap + 16 more | Find emails |
| brucebolt.us | #215,504 | Cloudflare edge/CDN, Google Hosted Libraries, Google Tag Manager + 12 more | Find emails |
| roadid.com | #215,515 | Attentive, Cloudflare edge/CDN, ConsentMo + 9 more | Find emails |
| wtvk.pl | #215,530 | Apache, Bootstrap, DigiCert + 8 more | Find emails |
| harrypottershop.jp | #215,541 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Let's Encrypt + 6 more | Find emails |
| rigorbiz.pt | #215,565 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| thehub.ca | #215,584 | Cloudflare Bot Management, Cloudflare edge/CDN, DoubleClick (Google Ads) + 11 more | Find emails |
| yap.ru | #215,593 | Cloudflare, Cloudflare Turnstile, Google Hosted Libraries + 5 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 →