CAPTCHA & Bot Protection
91,344 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9.1%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| iris.tv | #54,826 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 18 more | Find emails |
| handy.com | #54,844 | Adyen, Amazon (ACM), Amazon Route 53 + 20 more | Find emails |
| studylight.org | #54,857 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 3 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| stoplight.io |
| #54,891 |
| AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 33 more |
| Find emails |
| flingtrainer.com | #54,895 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| okhistory.org | #54,907 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 7 more | Find emails |
| matchesfashion.com | #54,917 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Google Workspace + 4 more | Find emails |
| nafsa.org | #54,921 | ASP.NET, AddToAny, Adobe Fonts (Typekit) + 14 more | Find emails |
| kinx.net | #54,923 | Apache, Daum, Font Awesome + 9 more | Find emails |
| comicbookresources.com | #54,933 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| airnet.uz | #54,961 | Ahrefs Analytics, Bootstrap, Cloudflare Turnstile + 14 more | Find emails |
| havaianas.com.br | #54,975 | Amazon Route 53, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| audience.io | #54,991 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 20 more | Find emails |
| algemeiner.com | #55,020 | AddThis, Cloudflare, Cloudflare Turnstile + 17 more | Find emails |
| catholicculture.org | #55,027 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| kwik-fit.com | #55,036 | Bootstrap, Font Awesome, Google Tag Manager + 5 more | Find emails |
| bhol.co.il | #55,056 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| limerickleader.ie | #55,057 | Cloudflare Bot Management, Cloudflare edge/CDN, Dotmetrics + 8 more | Find emails |
| zenviron.com | #55,061 | AOS, Cloudflare, Google Analytics + 9 more | Find emails |
| healius.com.au | #55,062 | AWS Lambda, Ahrefs Analytics, Amazon CloudFront + 14 more | Find emails |
| seohost.com.pl | #55,070 | Google Tag Manager, LiteSpeed | Find emails |
| abetterrouteplanner.com | #55,092 | Amazon CloudFront, Amazon S3, Cloudflare + 4 more | Find emails |
| aco.com.au | #55,101 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| edenbrothers.com | #55,109 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| ndu.edu | #55,127 | AOS, ASP.NET, Bootstrap + 13 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 →