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 |
|---|---|---|---|
| mobimatter.com | #128,255 | Amazon (ACM), Amazon CloudFront, Azure API Management + 6 more | Find emails |
| blissy.com | #128,258 | Amplitude, Attentive, Cloudflare + 10 more | Find emails |
| videogamesplus.ca | #128,268 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| switch.ca | #128,271 | AOS, Bootstrap, Chart.js + 11 more | Find emails |
| silcon.com | #128,290 | Apache, Bootstrap, Elfsight + 7 more | Find emails |
| neweggbusiness.com | #128,318 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 5 more | Find emails |
| uada.edu | #128,321 | ASP.NET, Azure DNS, Bootstrap + 15 more | Find emails |
| pba.com | #128,339 | Cloudflare edge/CDN, ConsentMo, Drupal + 7 more | Find emails |
| doncasterfreepress.co.uk | #128,341 | Cloudflare Bot Management, Cloudflare edge/CDN, Dotmetrics + 10 more | Find emails |
| matchi.se | #128,356 | Amazon (ACM), Amazon Route 53, Amplitude + 3 more | Find emails |
| frontlineworker.com | #128,363 | Adobe Experience Cloud (Launch), Azure DNS, Cloudflare Bot Management + 7 more | Find emails |
| naviextras.com | #128,372 | Cloudflare edge/CDN, DigiCert, Google Tag Manager + 4 more | Find emails |
| regzone.de | #128,379 | ASP.NET, Apache, Bootstrap + 7 more | Find emails |
| promelec.ru | #128,399 | DDoS-Guard, Fancybox, Let's Encrypt + 7 more | Find emails |
| explorerservizi.it | #128,411 | Font Awesome, Let's Encrypt, Nginx + 1 more | Find emails |
| expressone.hu | #128,458 | Apache, Bootstrap, Font Awesome + 12 more | Find emails |
| intechs.gr | #128,464 | Apache, CookieYes, DigiCert + 9 more | Find emails |
| usenetexpress.com | #128,487 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| bartinst.com | #128,491 | AWS Lambda, Cloudflare edge/CDN, Fastly + 11 more | Find emails |
| f1technical.net | #128,492 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| packagist.com | #128,494 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 18 more | Find emails |
| drtuber.club | #128,501 | Cloudflare, Font Awesome, Google Analytics + 4 more | Find emails |
| bmxmuseum.com | #128,513 | Google Analytics, Let's Encrypt, Modernizr + 3 more | Find emails |
| moes.com | #128,515 | Cloudflare Bot Management, Cloudflare edge/CDN, Contentful + 9 more | Find emails |
| xn--h1adlhdnlo2c.xn--p1ai | #128,554 | Cloudflare, Fancybox, Let's Encrypt + 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 →