CAPTCHA & Bot Protection
90,376 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9%). 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.
Other captcha & bot protection
| # | 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 |
|---|---|---|---|
| forcepoint.com | #37,158 | Adyen, Amazon Route 53, Brightcove + 18 more | Find emails |
| thelocal.fr | #37,163 | Adnami, Bluesky, DoubleClick (Google Ads) + 9 more | Find emails |
| bandori.party | #37,180 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| apphud.com | #37,211 | Amazon CloudFront, Atlassian Statuspage, Cloudflare + 14 more | Find emails |
| vietstock.vn | #37,221 | ASP.NET, Cloudflare, Google AdSense + 4 more | Find emails |
| gamovation.com | #37,223 | Bootstrap, Fancybox, Google Fonts + 6 more | Find emails |
| ytmnd.com | #37,243 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| anet.net.th | #37,253 | Apache, Axios, Bootstrap + 12 more | Find emails |
| ekantipur.com | #37,257 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| santafenewmexican.com | #37,263 | DoubleClick (Google Ads), Google Publisher Tag, Google Tag Manager + 5 more | Find emails |
| trbo.com | #37,319 | Cloudflare Bot Management, Cloudflare edge/CDN, Elementor + 8 more | Find emails |
| timelineimages.com | #37,339 | Amazon Route 53, Google Analytics, Google Hosted Libraries + 7 more | Find emails |
| burton.com | #37,354 | Bugsnag, Cloudflare edge/CDN, Google Tag Manager + 8 more | Find emails |
| nema.org | #37,356 | ASP.NET, Amazon Route 53, Bootstrap + 15 more | Find emails |
| maxnet.ua | #37,380 | Django, Google Fonts, Google Tag Manager + 5 more | Find emails |
| clay.com | #37,383 | AWS Lambda, Amazon (ACM), Amazon CloudFront + 13 more | Find emails |
| bfan.link | #37,407 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 8 more | Find emails |
| quickplay.com | #37,410 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 9 more | Find emails |
| laurageller.com | #37,438 | Cloudflare, Cloudflare edge/CDN, Global-e + 6 more | Find emails |
| facts.net | #37,457 | Bootstrap, Bunny CDN, BunnyCDN + 15 more | Find emails |
| sleepdoctor.com | #37,462 | Cloudflare, Cloudflare edge/CDN, Convert + 14 more | Find emails |
| tvp.info | #37,482 | Apache, DoubleClick (Google Ads), Gemius + 9 more | Find emails |
| billingsgazette.com | #37,485 | Amazon Advertising, AppNexus, BlueConic + 27 more | Find emails |
| comunidades.net | #37,516 | Apache, Let's Encrypt, cdnjs | Find emails |
| hibu.com | #37,518 | Adobe Analytics, Amazon CloudFront, Amazon Route 53 + 25 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 →