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 |
|---|---|---|---|
| webspring.se | #82,925 | Apache, Font Awesome, Google Fonts + 2 more | Find emails |
| lme.jp | #82,928 | Axios, DoubleClick (Google Ads), Font Awesome + 22 more | Find emails |
| atasunoptik.com.tr | #82,930 | Criteo, DigiCert, DoubleClick (Google Ads) + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| efrag.org | #82,952 | Adobe Fonts (Typekit), ConsentMo, Drupal + 6 more | Find emails |
| drsheths.com | #82,957 | Cloudflare, Cloudflare edge/CDN, GoAffPro + 11 more | Find emails |
| bookbrowse.com | #82,963 | Beehiiv, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| zakulisi.cz | #82,964 | Cloudflare, Google Analytics, Google Tag Manager + 6 more | Find emails |
| biomaze.ir | #82,972 | Font Awesome, Google Analytics, Google Fonts + 9 more | Find emails |
| teamsg.in | #82,974 | Cloudflare edge/CDN, GetSiteControl, Google Tag Manager + 9 more | Find emails |
| tranetechnologies.com | #82,981 | Adobe Experience Cloud (Launch), Amazon Route 53, Fastly + 2 more | Find emails |
| mumbrella.com.au | #82,996 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 14 more | Find emails |
| odara.com.br | #83,005 | Apache, Google Maps, Google Tag Manager + 6 more | Find emails |
| ashleyhomestore.ca | #83,021 | Cloudflare, Cloudflare edge/CDN, Google Ads Conversion + 8 more | Find emails |
| suipick.io | #83,022 | Bootstrap, Chart.js, Cloudflare + 7 more | Find emails |
| rentacyberfriend.com | #83,024 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 15 more | Find emails |
| mersenne.org | #83,039 | DoubleClick (Google Ads), Google Analytics, Google Hosted Libraries + 7 more | Find emails |
| cue-monitor.jp | #83,041 | Amazon (ACM), Amazon CloudFront, Apache + 6 more | Find emails |
| preferente.com | #83,051 | Google Analytics, Google Fonts, Google Hosted Libraries + 7 more | Find emails |
| kalahariresorts.com | #83,055 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 9 more | Find emails |
| mint.ca | #83,059 | ASP.NET, Adobe Experience Cloud (Launch), Azure API Management + 6 more | Find emails |
| crossstitch.pk | #83,061 | Cloudflare edge/CDN, DigitalOcean Spaces, Google Ads Conversion + 10 more | Find emails |
| oreno-erohon.com | #83,067 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| venapp.com | #83,070 | DoubleClick (Google Ads), Google Analytics, Google Publisher Tag + 7 more | Find emails |
| regzone.info | #83,093 | ASP.NET, Apache, Bootstrap + 7 more | Find emails |
| paramountpressexpress.com | #83,103 | Adobe Experience Cloud (Launch), Amazon (ACM), Google Analytics + 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →