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 |
|---|---|---|---|
| orientelectric.com | #78,325 | Amazon Route 53, Cloudflare edge/CDN, GSAP + 8 more | Find emails |
| akeyless.io | #78,368 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| itk.ac.id | #78,379 | Bootstrap, Chart.js, Cloudflare + 19 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| webnode.sk | #78,403 | Amazon Route 53, Convert, DoubleClick (Google Ads) + 7 more | Find emails |
| cashcrusaders.co.za | #78,418 | ASP.NET, Azure DNS, Bootstrap + 16 more | Find emails |
| klikego.com | #78,428 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| bodzio.pl | #78,429 | Google Fonts, Google Tag Manager, Hotjar + 3 more | Find emails |
| georgebrown.ca | #78,430 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 9 more | Find emails |
| contasimple.com | #78,449 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| optappbid.com | #78,457 | GoDaddy Website Builder, GoDaddy | Find emails |
| underarmour.com.br | #78,459 | Amazon CloudFront, Google Fonts, Google Tag Manager + 6 more | Find emails |
| zettlab.com | #78,460 | Alibaba Cloud DNS, Cloudflare edge/CDN, GSAP + 7 more | Find emails |
| indomco.com | #78,478 | Azure Front Door, Bootstrap, Google Tag Manager + 5 more | Find emails |
| sound-machine.com | #78,505 | Adobe Fonts (Typekit), Amazon Route 53, Apache + 17 more | Find emails |
| vaku.in | #78,518 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 5 more | Find emails |
| voltas.com | #78,522 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 15 more | Find emails |
| beistravel.com | #78,523 | Attentive, Cloudflare edge/CDN, Gorgias + 9 more | Find emails |
| thaiware.com | #78,548 | Apache, Font Awesome, Google AdSense + 10 more | Find emails |
| farmergracy.co.uk | #78,559 | Cloudflare edge/CDN, Google Cloud DNS, Gorgias + 6 more | Find emails |
| imgfy.net | #78,586 | Chevereto, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| sonassi.com | #78,590 | Fancybox, Google Fonts, Google Maps + 11 more | Find emails |
| trustz.app | #78,593 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| chance.com | #78,595 | A8.net, Amazon (ACM), Amazon Advertising + 12 more | Find emails |
| lekarzebezkolejki.pl | #78,603 | Google Fonts, Magnite (Rubicon Project), Microsoft 365 + 4 more | Find emails |
| lonza.com | #78,630 | Akamai Edge DNS, Bizible, Brightcove + 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 →