CAPTCHA & Bot Protection
90,376 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9%). 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 |
|---|---|---|---|
| actoragecheck.com | #110,792 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 7 more | Find emails |
| mirrored.to | #110,807 | Apache, Google Analytics, Google Hosted Libraries + 5 more | Find emails |
| icandiapps.com | #110,808 | Amazon Route 53, Backbone.js, CookieYes + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| monetag.com | #110,815 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| drbronner.com | #110,817 | Attentive, Bazaarvoice, Cloudflare + 17 more | Find emails |
| randstad.nl | #110,819 | Amazon (ACM), Amazon Route 53, reCAPTCHA Enterprise | Find emails |
| doverpublications.com | #110,826 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| match.it | #110,850 | ASP.NET, Bootstrap, Civic Cookie Control + 6 more | Find emails |
| vyadd.com | #110,866 | Apache, Bootstrap, Font Awesome + 3 more | Find emails |
| berlook.com | #110,869 | Cloudflare, Cloudflare edge/CDN, Judge.me + 5 more | Find emails |
| trustage.com | #110,870 | ASP.NET, Azure DNS, Azure Front Door + 13 more | Find emails |
| scootle.edu.au | #110,871 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| exotel.com | #110,902 | Amazon Route 53, Amplitude, Cloudflare Turnstile + 21 more | Find emails |
| esetnod32.ru | #110,905 | Bitrix, Cloudflare, Google Tag Manager + 8 more | Find emails |
| billabong.com | #110,924 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 13 more | Find emails |
| fantagraphics.com | #110,932 | Cloudflare edge/CDN, Google Tag Manager, Hotjar + 5 more | Find emails |
| shieldsgazette.com | #110,935 | Cloudflare Bot Management, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| efor.es | #110,945 | Bootstrap, Drupal, Google Tag Manager + 8 more | Find emails |
| americanvintage-store.com | #110,953 | Axeptio, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| toodledo.com | #111,011 | Cloudflare, Cloudflare edge/CDN, FirstPromoter + 17 more | Find emails |
| roughdraftatlanta.com | #111,018 | DoubleClick (Google Ads), Google Publisher Tag, Google Tag Manager + 9 more | Find emails |
| namebox.ro | #111,063 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 15 more | Find emails |
| zayzoon.com | #111,066 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| moqups.com | #111,076 | Bluesky, Google Analytics, Google Tag Manager + 2 more | Find emails |
| buhgalteria.ru | #111,105 | AdRiver, Bitrix, Bootstrap + 16 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →