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 |
|---|---|---|---|
| senioras.com | #128,560 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 6 more | Find emails |
| recipeland.com | #128,561 | BlogHer Ads (SHE Media), Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| sfdr.co | #128,576 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 15 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| rticorp.com | #128,586 | Adobe Fonts (Typekit), Amazon Route 53, Cloudflare edge/CDN + 9 more | Find emails |
| csid.com | #128,604 | AOS, Adobe Experience Cloud (Launch), Amazon CloudFront + 18 more | Find emails |
| river.com | #128,622 | Ashby, Google Analytics, Google Cloud DNS + 8 more | Find emails |
| apm.mc | #128,628 | Cloudflare edge/CDN, ConsentMo, Let's Encrypt + 6 more | Find emails |
| lasenza.com | #128,629 | Cloudflare, Cloudflare edge/CDN, Global-e + 8 more | Find emails |
| gunsnroses.com | #128,647 | Adobe Fonts (Typekit), Amazon Route 53, Attentive + 6 more | Find emails |
| javhub.net | #128,663 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 5 more | Find emails |
| digitaldealer.com.au | #128,680 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| dobrohost.ru | #128,693 | Bulma, Font Awesome, Google Fonts + 4 more | Find emails |
| princessetamtam.com | #128,697 | AB Tasty, Adobe Fonts (Typekit), Akamai Bot Manager + 12 more | Find emails |
| abacus.coop | #128,705 | Cloudflare edge/CDN, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| sailgp.com | #128,707 | Amazon (ACM), Amazon CloudFront, Contentful + 7 more | Find emails |
| filimin.com | #128,756 | Cloudflare edge/CDN, GoAffPro, Google Ads Conversion + 16 more | Find emails |
| hh2.com | #128,774 | Ahrefs Analytics, Better Uptime, Cloudflare Bot Management + 22 more | Find emails |
| stageit.com | #128,783 | Amazon (ACM), Amazon Route 53, Google Fonts + 7 more | Find emails |
| fullnet.com | #128,794 | Apache, Google AdSense, Let's Encrypt + 2 more | Find emails |
| steadyrack.com | #128,795 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| masrefacciones.mx | #128,840 | Amazon CloudFront, Amazon Route 53, Bootstrap + 12 more | Find emails |
| hdfcfund.com | #128,851 | AOS, Adobe Experience Cloud (Launch), Akamai Edge DNS + 16 more | Find emails |
| bakker.com | #128,882 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Google Fonts + 6 more | Find emails |
| rouje.com | #128,890 | Cloudflare, Cloudflare edge/CDN, Gorgias + 8 more | Find emails |
| fom.ru | #128,893 | DDoS-Guard, PHP, Telegram + 2 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 →