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 |
|---|---|---|---|
| fsr.com | #115,841 | ASP.NET, Bootstrap, DigiCert + 9 more | Find emails |
| shawfloors.com | #115,857 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 10 more | Find emails |
| oldhouses.com | #115,861 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| eyemartexpress.com | #115,864 | Adobe Fonts (Typekit), Amazon Route 53, Cloudflare edge/CDN + 6 more | Find emails |
| illinoispolicy.org | #115,877 | Amazon (ACM), Amazon CloudFront, Apache + 10 more | Find emails |
| kaplaninternational.com | #115,887 | Amazon (ACM), Amazon Route 53, Brandfolder + 10 more | Find emails |
| franchising.com | #115,908 | Algolia, Bluesky, Bootstrap + 27 more | Find emails |
| derbyshiretimes.co.uk | #115,909 | Cloudflare Bot Management, Cloudflare edge/CDN, Dotmetrics + 10 more | Find emails |
| clip2net.com | #115,921 | Cloudflare, Fancybox, Google Analytics + 10 more | Find emails |
| mbrf.ae | #115,957 | Apache, Bootstrap, Font Awesome + 12 more | Find emails |
| powerpool.io | #115,963 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| host-forest.com | #115,964 | Chart.js, Cloudflare, Font Awesome + 7 more | Find emails |
| nawcc.org | #115,991 | Cloudflare, Fancybox, Font Awesome + 12 more | Find emails |
| adfoc.us | #116,003 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| colorescience.com | #116,017 | Attentive, Cloudflare edge/CDN, GetSiteControl + 10 more | Find emails |
| biblepay.org | #116,019 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| goldenhome.gr | #116,036 | Bootstrap, Cloudflare, Fancybox + 13 more | Find emails |
| digitalclickstime.com | #116,074 | GoDaddy Website Builder, GoDaddy | Find emails |
| alessi.com | #116,082 | Cloudflare edge/CDN, Gorgias, Klaviyo + 6 more | Find emails |
| adriannapapell.com | #116,097 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| mtstandard.com | #116,113 | 33Across, Advertising.com, Amazon Advertising + 44 more | Find emails |
| brookstone.com | #116,139 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 11 more | Find emails |
| ankerjapan.com | #116,140 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 8 more | Find emails |
| betsoftgaming.com | #116,148 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| arbtalk.co.uk | #116,192 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 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 →