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 |
|---|---|---|---|
| icf.com | #78,036 | AOS, Amazon CloudFront, DigiCert + 11 more | Find emails |
| shalom.com.pe | #78,037 | Apache, Google Fonts, Let's Encrypt + 5 more | Find emails |
| wolverine.com | #78,052 | Adobe Fonts (Typekit), Amazon Route 53, Bazaarvoice + 17 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| myautoleap.com |
| #78,065 |
| GoDaddy Website Builder, GoDaddy |
| Find emails |
| asimjofa.com | #78,073 | Cloudflare edge/CDN, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| junelife.com | #78,082 | AOS, Amazon Route 53, Awin + 16 more | Find emails |
| otbasybank.kz | #78,103 | ASP.NET, Bootstrap, Font Awesome + 11 more | Find emails |
| casadosdados.com.br | #78,125 | Better Uptime, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| worldcrunch.com | #78,128 | Cloudflare, Cloudflare edge/CDN, Criteo + 13 more | Find emails |
| philgeps.gov.ph | #78,152 | Apache, Bootstrap, Cloudflare + 8 more | Find emails |
| vox.co.za | #78,169 | Bootstrap, Express, Font Awesome + 14 more | Find emails |
| click.ua | #78,176 | Cloudflare, Google Tag Manager, Nginx + 2 more | Find emails |
| cotopaxi.com | #78,181 | Axios, Bugsnag, Cloudflare Bot Management + 23 more | Find emails |
| abc-cooking.co.jp | #78,184 | Amazon (ACM), Amazon Route 53, Apache + 6 more | Find emails |
| soundstrue.com | #78,185 | AB Tasty, AppNexus, Cloudflare + 16 more | Find emails |
| swiftnav.com | #78,209 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| cgos.info | #78,215 | Apache, Bluesky, DigiCert + 6 more | Find emails |
| myheritage.pl | #78,230 | Amazon CloudFront, Apache, ConsentMo + 5 more | Find emails |
| prtcom.ru | #78,240 | Fancybox, Let's Encrypt, Nginx + 3 more | Find emails |
| spj.org | #78,241 | Adobe Experience Cloud (Launch), Bootstrap, Cloudflare + 15 more | Find emails |
| dietnavi.com | #78,247 | A8.net, AOS, Amazon (ACM) + 16 more | Find emails |
| kake.com | #78,248 | DoubleClick (Google Ads), Google Fonts, Google Publisher Tag + 6 more | Find emails |
| marocannonces.com | #78,279 | DigiCert, Google AdSense, Google Analytics + 7 more | Find emails |
| southernglazers.com | #78,289 | Adobe Experience Cloud (Launch), Amazon Route 53, DigiCert + 6 more | Find emails |
| anisuge.se | #78,306 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 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 →