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 |
|---|---|---|---|
| flightstats.com | #24,205 | Amazon (ACM), Amazon Route 53, Google Analytics + 6 more | Find emails |
| itemfix.com | #24,250 | Bootstrap, Cloudflare, Font Awesome + 10 more | Find emails |
| nzxt.com | #24,251 | Cloudflare edge/CDN, ConsentMo, Extend + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| lcn.com |
| #24,256 |
| Apache, Atlassian Statuspage, Google Tag Manager + 7 more |
| Find emails |
| paltalk.com | #24,293 | Amazon Route 53, Bootstrap, Cloudflare Web Analytics + 20 more | Find emails |
| dotandkey.com | #24,315 | Ahrefs Analytics, Cloudflare edge/CDN, Convert + 11 more | Find emails |
| emiratesnbd.com | #24,316 | AOS, ASP.NET, Adobe Experience Cloud (Launch) + 12 more | Find emails |
| winnipegfreepress.com | #24,324 | Bluesky, DoubleClick (Google Ads), Font Awesome + 16 more | Find emails |
| ny1.com | #24,338 | Adobe Experience Cloud (Launch), Adobe Target, Amazon (ACM) + 6 more | Find emails |
| xcelenergy.com | #24,351 | Adobe Experience Cloud (Launch), Adyen, Amazon Advertising + 30 more | Find emails |
| lamborghini.com | #24,367 | Amazon Route 53, DigiCert, Dynatrace + 4 more | Find emails |
| logdna.com | #24,368 | AWS Lambda, Adopt, Amazon Route 53 + 5 more | Find emails |
| streema.com | #24,388 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| world-nuclear.org | #24,397 | Bootstrap, Cloudflare, Font Awesome + 8 more | Find emails |
| turkish123.com | #24,427 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| lifesitenews.com | #24,451 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 6 more | Find emails |
| abc15.com | #24,466 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| local10.com | #24,487 | Confiant, DoubleClick (Google Ads), Google Fonts + 12 more | Find emails |
| elephantjournal.com | #24,497 | All in One SEO, Braintree, Cloudflare + 18 more | Find emails |
| lws.fr | #24,502 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| lightspeedhq.com | #24,512 | Bizible, Bootstrap, Cloudflare + 15 more | Find emails |
| thepinknews.com | #24,537 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 18 more | Find emails |
| pplusstatic.com | #24,578 | AOS, Akamai Bot Manager, Akamai edge/CDN + 9 more | Find emails |
| izap24.ru | #24,605 | Cloudflare, Font Awesome, Google Fonts + 5 more | Find emails |
| giacaphe.com | #24,629 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 4 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 →