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 |
|---|---|---|---|
| system76.com | #23,130 | AWS WAF, Ahrefs Analytics, Amazon (ACM) + 23 more | Find emails |
| jobfind.gr | #23,157 | ASP.NET, Bootstrap, Font Awesome + 13 more | Find emails |
| milanote.com | #23,181 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| libertic.com |
| #23,185 |
| Google Analytics, Google Fonts, Google Tag Manager + 2 more |
| Find emails |
| pictbland.net | #23,220 | Apache, Bootstrap, Cloudflare edge/CDN + 9 more | Find emails |
| facer.io | #23,272 | AddThis, Amazon (ACM), Amazon Route 53 + 12 more | Find emails |
| fuegodevida.com | #23,289 | Bootstrap, Django, Google Analytics + 10 more | Find emails |
| pnpclearance.ph | #23,291 | AOS, AWS WAF, Amazon (ACM) + 10 more | Find emails |
| wafid.com | #23,297 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| cushmanwakefield.com | #23,317 | ASP.NET, Azure API Management, Bootstrap + 17 more | Find emails |
| logiless.com | #23,337 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| bizmation.io | #23,339 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| fiba.basketball | #23,343 | Azure API Management, Azure Front Door, DigiCert + 5 more | Find emails |
| webnode.cz | #23,351 | Amazon Route 53, Convert, DoubleClick (Google Ads) + 7 more | Find emails |
| reneecosmetics.in | #23,387 | Cloudflare edge/CDN, Google AMP, Google Ads Conversion + 10 more | Find emails |
| ignum.cz | #23,392 | Cookiebot, Google Fonts, HTMX + 6 more | Find emails |
| youcanbook.me | #23,418 | Ahrefs Analytics, Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| gayfute.com | #23,474 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| nextiva.com | #23,508 | Adyen, Amazon Route 53, Atlassian Statuspage + 30 more | Find emails |
| nsf.org | #23,509 | Amazon Route 53, Azure Front Door, Bootstrap + 14 more | Find emails |
| anz.com | #23,517 | Adobe Audience Manager, Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM) + 16 more | Find emails |
| mining.com | #23,521 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 20 more | Find emails |
| panerabread.com | #23,541 | Adobe Analytics, Adobe Experience Cloud (Launch), Adobe Target + 27 more | Find emails |
| salesmanago.com | #23,544 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare + 11 more | Find emails |
| usitc.gov | #23,551 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 8 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 →