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 |
|---|---|---|---|
| pactflow.io | #34,768 | AOS, Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| embed.ly | #34,773 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 18 more | Find emails |
| republicain-lorrain.fr | #34,780 | ConsentMo, Didomi, Google Tag Manager + 1 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| muscleandstrength.com | #34,791 | Ahrefs Analytics, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| tampabay28.com | #34,885 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| gdeslon.ru | #34,893 | Bootstrap, Cloudflare, Django + 9 more | Find emails |
| asmallorange.com | #34,934 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), Cloudflare + 12 more | Find emails |
| unionleader.com | #34,945 | Blockthrough, Google Fonts, Google Tag Manager + 5 more | Find emails |
| kmail-lists.com | #34,946 | Amazon Route 53, Astro, Cloudflare edge/CDN + 8 more | Find emails |
| webglobe.com | #34,952 | Cookiebot, DigiCert, Google Fonts + 6 more | Find emails |
| tonies.com | #34,953 | Amazon Route 53, Bazaarvoice, Cloudflare edge/CDN + 7 more | Find emails |
| zaragoza.es | #34,954 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| getweave.com | #34,960 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 7 more | Find emails |
| outsystems.com | #34,962 | AWS Lambda, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| freemyip.com | #34,989 | Bootstrap, Google Fonts, Let's Encrypt + 3 more | Find emails |
| qikify.com | #35,030 | Ahrefs Analytics, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| mi.com.co | #35,042 | Amplitude, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| funtrivia.com | #35,045 | Apache, Google AdSense, Google Analytics + 5 more | Find emails |
| agerpres.ro | #35,051 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| analyticsvidhya.com | #35,054 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| moo.com | #35,068 | Amazon Route 53, Fastly, Google Tag Manager + 4 more | Find emails |
| flowpaper.com | #35,076 | Amazon CloudFront, Bootstrap, Cloudflare + 10 more | Find emails |
| neweracap.com | #35,082 | Adobe Fonts (Typekit), Cloudflare edge/CDN, ConsentMo + 12 more | Find emails |
| scandit.com | #35,086 | Amazon CloudFront, Amazon Route 53, Chili Piper + 14 more | Find emails |
| namehero.com | #35,113 | Bootstrap, ChatGPT Ads Pixel, Cloudflare + 17 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 →