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.
| # | 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 |
|---|---|---|---|
| bookseriesinorder.com | #108,586 | Google AdSense, Google Analytics, Google Tag Manager + 7 more | Find emails |
| gamewatcher.com | #108,594 | Amazon Route 53, Google Analytics, Google Fonts + 7 more | Find emails |
| blockmarktech.com | #108,607 | Apache, Bluesky, Google Analytics + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| 3deye.me | #108,612 | Amazon (ACM), Amazon Route 53, Apache + 12 more | Find emails |
| simplehosting.ch | #108,673 | Font Awesome, Google Analytics, Google Tag Manager + 4 more | Find emails |
| igive.com | #108,677 | Amazon Route 53, Bootstrap, Fastmail + 11 more | Find emails |
| theparliamentmagazine.eu | #108,689 | ASP.NET, DoubleClick (Google Ads), Google Fonts + 9 more | Find emails |
| mustsharenews.com | #108,699 | AMP for WP, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| webnode.hu | #108,728 | Amazon Route 53, Convert, DoubleClick (Google Ads) + 7 more | Find emails |
| hbfuller.com | #108,733 | Azure API Management, Bootstrap, Cloudflare + 11 more | Find emails |
| utalca.cl | #108,736 | Apache, Azure DNS, DigiCert + 12 more | Find emails |
| busymatch.com | #108,749 | AddThis, Cloudflare, Cloudflare Bot Management + 4 more | Find emails |
| unifiedpost.com | #108,752 | AWS Lambda, Cloudflare edge/CDN, ConsentMo + 5 more | Find emails |
| scholarlyiq.com | #108,770 | ASP.NET, Adobe Fonts (Typekit), Google Tag Manager + 6 more | Find emails |
| moldcell.md | #108,781 | Adobe Fonts (Typekit), Bootstrap, DoubleClick (Google Ads) + 16 more | Find emails |
| annfammed.org | #108,783 | Bluesky, Bootstrap, Cloudflare Bot Management + 15 more | Find emails |
| bestel.com.mx | #108,797 | DigiCert, Google Fonts, Microsoft 365 | Find emails |
| protonstatus.com | #108,831 | Amazon CloudFront, Atlassian Statuspage, Cloudflare + 7 more | Find emails |
| maisfontes.com | #108,832 | Cloudflare, Ezoic, Gatekeeper Consent Management Platform + 6 more | Find emails |
| convercy.app | #108,843 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| every.to | #108,852 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 9 more | Find emails |
| trainual.com | #108,886 | AWS Lambda, Calendly, Cloudflare + 11 more | Find emails |
| radaromega.com | #108,913 | Amazon (ACM), Amazon Route 53, Bootstrap + 12 more | Find emails |
| lojaintegrada.com.br | #108,918 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| tapuz.co.il | #108,940 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →