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.
| # | 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 |
|---|---|---|---|
| velvetcaviar.com | #133,242 | Attentive, Cloudflare edge/CDN, Google Tag Manager + 15 more | Find emails |
| organicauthority.com | #133,248 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| cam-content.com | #133,252 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| murabba.com | #133,253 | Font Awesome, Google Analytics, Google Site Kit + 9 more | Find emails |
| panneaupocket.com | #133,256 | Apache, Bootstrap, Elementor + 13 more | Find emails |
| esurance.com | #133,261 | ASP.NET, Adobe Experience Cloud (Launch), Akamai Bot Manager + 17 more | Find emails |
| atproperties.com | #133,266 | Amazon (ACM), Amazon Route 53, Apache + 7 more | Find emails |
| gskill.com | #133,279 | Apache, GSAP, Google Analytics + 12 more | Find emails |
| albertsonscompanies.com | #133,280 | ASP.NET, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| tramontina.com | #133,291 | Adopt, Bazaarvoice, Cloudflare + 7 more | Find emails |
| onebit.eu | #133,299 | Cookiebot, DigiCert, Google Fonts + 5 more | Find emails |
| kenoshanews.com | #133,300 | 33Across, Advertising.com, Amazon Advertising + 44 more | Find emails |
| allautonetwork.com | #133,302 | Bootstrap, Font Awesome, Google Fonts + 18 more | Find emails |
| lopdns.se | #133,303 | Apache, Bootstrap, Google Analytics + 6 more | Find emails |
| izap24.by | #133,320 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| unixstorm.org | #133,332 | Bootstrap, Font Awesome, Google Ads Conversion + 12 more | Find emails |
| filetransfer.io | #133,351 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| veniceunleashed.net | #133,353 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| hmns.org | #133,361 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Google Tag Manager + 4 more | Find emails |
| brainhq.app | #133,394 | Clicky, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| caribbean-airlines.com | #133,395 | AngularJS, Apache, Azure DNS + 12 more | Find emails |
| imoti.net | #133,401 | Apache, DoubleClick (Google Ads), Google Analytics + 10 more | Find emails |
| jazzpharma.com | #133,441 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), DigiCert + 12 more | Find emails |
| allianz.ru | #133,446 | Bitrix, Google Analytics, PHP + 4 more | Find emails |
| clippings.me | #133,451 | AddToAny, Cloudflare, Cloudflare edge/CDN + 13 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 →