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.
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 |
|---|---|---|---|
| biddr.com | #55,984 | Amazon Route 53, Apache, DigiCert + 3 more | Find emails |
| webyourself.eu | #55,989 | Apache, Bootstrap, Cloudflare + 11 more | Find emails |
| apptimize.eu | #55,999 | AdRoll, Adobe Fonts (Typekit), AngularJS + 14 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| frwd.energy |
| #56,043 |
| DDoS-Guard, Drupal, Google Tag Manager + 3 more |
| Find emails |
| fathomentertainment.com | #56,048 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 8 more | Find emails |
| covet.pics | #56,053 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| bubblelife.com | #56,054 | ASP.NET, Amazon (ACM), Amazon Route 53 + 14 more | Find emails |
| hubdoc.com | #56,063 | Akamai Bot Manager, Akamai edge/CDN, Amazon Route 53 + 19 more | Find emails |
| wayofwade.com | #56,068 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 8 more | Find emails |
| newswitch.jp | #56,085 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| time-host.net | #56,108 | Cloudflare, DataLife Engine, Elfsight + 7 more | Find emails |
| cobasi.com.br | #56,119 | AppsFlyer, Azion, Azure DNS + 11 more | Find emails |
| oreluniver.ru | #56,130 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| nation.cymru | #56,165 | Bluesky, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| expat.com | #56,168 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| bandai-hobby.net | #56,179 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon Route 53 + 18 more | Find emails |
| willyweather.com.au | #56,182 | Amazon (ACM), Amazon Route 53, Apache + 3 more | Find emails |
| febspot.com | #56,184 | Cloudflare, Google Analytics, Google Tag Manager + 5 more | Find emails |
| tennis-point.de | #56,220 | Cloudflare, Cloudflare edge/CDN, Dynamic Yield + 7 more | Find emails |
| seedit4.me | #56,260 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| mix.tokyo | #56,264 | Amazon Route 53, ClickTale (Contentsquare), Cloudflare edge/CDN + 13 more | Find emails |
| suomi24.fi | #56,269 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 10 more | Find emails |
| gotranscript.com | #56,276 | Amazon (ACM), Bootstrap, Cloudflare Turnstile + 6 more | Find emails |
| gps.ie | #56,292 | Cloudflare, Cloudflare edge/CDN, Judge.me + 4 more | Find emails |
| peoplelooker.com | #56,294 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 11 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 →