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 |
|---|---|---|---|
| tourfactory.com | #135,153 | All in One SEO, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| certideal.com | #135,155 | Amazon CloudFront, Amazon Route 53, Apache + 10 more | Find emails |
| starship.xyz | #135,163 | Amazon Route 53, DigitalOcean Spaces, Google Fonts + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| cleaninginstitute.org | #135,176 | ASP.NET, Azure API Management, Cloudflare + 10 more | Find emails |
| ecosweb.com.br | #135,181 | Microsoft 365 | Find emails |
| scalev.id | #135,188 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| ponchooutdoors.com | #135,190 | Cloudflare edge/CDN, Intelligems, Klaviyo + 9 more | Find emails |
| hentaiclap.com | #135,208 | Bootstrap, Cloudflare, Cloudflare Turnstile + 12 more | Find emails |
| wiscnews.com | #135,215 | 33Across, Advertising.com, Amazon Advertising + 45 more | Find emails |
| rgare.com | #135,219 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 15 more | Find emails |
| reservia.jp | #135,252 | All in One SEO, Amazon Route 53, Bootstrap + 9 more | Find emails |
| tube8.es | #135,253 | Amazon Route 53, DoubleClick (Google Ads), Google Analytics + 4 more | Find emails |
| salatimes.com | #135,254 | Apache, Bootstrap, DigiCert + 8 more | Find emails |
| apsva.us | #135,270 | Cloudflare, Cloudflare edge/CDN, Google Site Kit + 7 more | Find emails |
| catrion.com | #135,272 | Azure Front Door, Concrete CMS, Google Analytics + 8 more | Find emails |
| rapidmoviez.cr | #135,279 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| youbeli.com | #135,282 | Bugsnag, Cloudflare, Cloudflare edge/CDN + 16 more | Find emails |
| bhashini.co.in | #135,288 | GoDaddy Website Builder, GoDaddy | Find emails |
| allamericanspeakers.com | #135,298 | AMP for WP, AdRoll, Bootstrap + 17 more | Find emails |
| wispwest.net | #135,303 | Google Fonts, Google Tag Manager, Let's Encrypt + 7 more | Find emails |
| qwickly.tools | #135,314 | Amazon (ACM), Amazon Route 53, Bootstrap + 9 more | Find emails |
| declarator.org | #135,341 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 16 more | Find emails |
| biz-journal.jp | #135,345 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| surlybikes.com | #135,347 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Klaviyo + 6 more | Find emails |
| quantumcore.com.au | #135,354 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 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 →