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 |
|---|---|---|---|
| careersafeonline.com | #64,893 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| theanswerbank.co.uk | #64,914 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| onebit.cz | #64,923 | Cookiebot, Google Fonts, HTMX + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| lacrossetribune.com | #64,930 | 33Across, Advertising.com, Amazon Advertising + 44 more | Find emails |
| webwire.com | #64,939 | Fancybox, Font Awesome, Microsoft IIS + 5 more | Find emails |
| blackplanet.com | #64,958 | Amazon Route 53, Google Analytics, Google Tag Manager + 3 more | Find emails |
| cloudmonsters.nl | #64,966 | Adobe Fonts, Adobe Fonts (Typekit), Font Awesome + 11 more | Find emails |
| advbox.com.br | #64,985 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 16 more | Find emails |
| top-radio.ru | #64,992 | Google AdSense, Google Analytics, Google Tag Manager + 5 more | Find emails |
| sportyhq.com | #65,001 | AWS Lambda, Bootstrap, Cloudflare + 14 more | Find emails |
| lotto-bw.de | #65,011 | DigiCert, Trusted Shops, Usercentrics + 5 more | Find emails |
| anna.money | #65,044 | ConsentMo, DigiCert, Fastly + 6 more | Find emails |
| geisinger.org | #65,049 | Fancybox, Font Awesome, Google Tag Manager + 12 more | Find emails |
| afp.gov.au | #65,051 | DigiCert, Drupal, GTranslate + 2 more | Find emails |
| pilotflyingj.com | #65,072 | ASP.NET, Adobe Experience Cloud (Launch), Adobe Fonts + 20 more | Find emails |
| nohesi.gg | #65,076 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| hapitas.jp | #65,114 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| ghn.vn | #65,117 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 13 more | Find emails |
| thirdbridge.com | #65,164 | ASP.NET, Amazon Route 53, Azure API Management + 7 more | Find emails |
| gismart.xyz | #65,169 | Amazon (ACM), Amazon CloudFront, Cloudflare + 6 more | Find emails |
| teampages.com | #65,208 | Fancybox, Google Analytics, Google Fonts + 9 more | Find emails |
| myheritage.de | #65,218 | Amazon CloudFront, Apache, ConsentMo + 5 more | Find emails |
| epapoutsia.gr | #65,224 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 3 more | Find emails |
| tiendacopec.cl | #65,229 | Cloudflare, Cloudflare edge/CDN, Judge.me + 4 more | Find emails |
| roadscholar.org | #65,247 | Cloudflare edge/CDN, DigiCert, Google Tag Manager + 3 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →