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 |
|---|---|---|---|
| abdt.ru | #96,793 | Google Fonts, Nginx, Yandex Metrica + 1 more | Find emails |
| auglio.com | #96,839 | Ahrefs Analytics, Bootstrap, Cloudflare + 9 more | Find emails |
| onlocationexp.com | #96,863 | AWS Lambda, Amazon Route 53, Amplitude + 15 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| showturk.com.tr |
| #96,876 |
| DigiCert, Google Tag Manager, jQuery + 1 more |
| Find emails |
| thekingcenter.org | #96,880 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| nam.ac.uk | #96,889 | Akamai Bot Manager, Akamai edge/CDN, Cloudflare + 11 more | Find emails |
| kjrh.com | #96,922 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| mommypoppins.com | #96,926 | Amazon Route 53, Drupal, Fastly + 9 more | Find emails |
| amsmeteors.org | #96,929 | Apache, Azure DNS, Bootstrap + 14 more | Find emails |
| paydashboard.com | #96,941 | Adobe Experience Cloud (Launch), Apache, CSC (Digital Brand Services) + 7 more | Find emails |
| dealeraccelerate.com | #96,955 | Amazon (ACM), Amazon Route 53, Nginx + 1 more | Find emails |
| socialbee.com | #96,956 | Amazon Route 53, Bootstrap, Cloudflare Bot Management + 14 more | Find emails |
| aleto.ua | #96,965 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| recife.com.pt | #96,978 | Bootstrap, Cloudflare, ConsentMo + 11 more | Find emails |
| athemeart.com | #97,004 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| subdued.com | #97,005 | Cloudflare edge/CDN, Global-e, Klaviyo + 6 more | Find emails |
| ibc.pl | #97,016 | Google Tag Manager, Nginx, reCAPTCHA v2 | Find emails |
| jewishcurrents.org | #97,034 | Axios, Bootstrap, Chartbeat + 16 more | Find emails |
| tiktop-free.com | #97,040 | Cloudflare, Font Awesome, Let's Encrypt + 4 more | Find emails |
| vicicollection.com | #97,046 | Bazaarvoice, Cloudflare edge/CDN, Google Tag Manager + 18 more | Find emails |
| fugro.com | #97,049 | BrightEdge, Let's Encrypt, Next.js + 4 more | Find emails |
| afriregister.com | #97,053 | Apache, Bootstrap, Fancybox + 6 more | Find emails |
| cred.club | #97,081 | Amazon CloudFront, Amazon Route 53, Next.js + 2 more | Find emails |
| maplestore.in | #97,089 | Cloudflare edge/CDN, Font Awesome, Judge.me + 9 more | Find emails |
| stockfresh.com | #97,093 | Clicky, Cloudflare, Cloudflare edge/CDN + 10 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 →