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 |
|---|---|---|---|
| innopolis.university | #57,730 | Bitrix, Font Awesome, Google Analytics + 9 more | Find emails |
| costcotravel.ca | #57,734 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 8 more | Find emails |
| pushking.net | #57,739 | Bootstrap, Chart.js, Font Awesome + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| magshop.co.nz | #57,745 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| zagg.com | #57,760 | Amazon Route 53, Attentive, BigCommerce + 13 more | Find emails |
| dailyprogress.com | #57,762 | 33Across, Advertising.com, Amazon Advertising + 40 more | Find emails |
| tableclothsfactory.com | #57,775 | Attentive, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| slideslive.com | #57,783 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 5 more | Find emails |
| citra.net.id | #57,789 | Bootstrap, Chart.js, Font Awesome + 14 more | Find emails |
| lively.com | #57,790 | Amazon Route 53, Bazaarvoice, Cloudflare edge/CDN + 7 more | Find emails |
| baskent.edu.tr | #57,798 | Apache, Google Analytics, Google Fonts + 4 more | Find emails |
| airtory.com | #57,807 | Apache, Bootstrap, Cloudflare + 16 more | Find emails |
| rental.software | #57,825 | AOS, Apache, Bootstrap + 9 more | Find emails |
| lapatria.com | #57,844 | ConsentMo, Drupal, Google Fonts + 8 more | Find emails |
| resalib.fr | #57,852 | AngularJS, Bootstrap, Cloudflare + 11 more | Find emails |
| streamamg.com | #57,861 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 15 more | Find emails |
| altapress.ru | #57,864 | Google Analytics, Google Fonts, LiveInternet (Yadro) + 10 more | Find emails |
| briefly.co.za | #57,869 | Amazon (ACM), Amazon CloudFront, Cloudflare + 5 more | Find emails |
| weathercrave.com | #57,874 | DigiCert, DoubleClick (Google Ads), Google Publisher Tag + 5 more | Find emails |
| themespride.com | #57,884 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 14 more | Find emails |
| storypark.com | #57,905 | AWS Lambda, Adobe Fonts (Typekit), Amazon Route 53 + 19 more | Find emails |
| perkinelmer.com | #57,922 | Adyen, Akamai edge/CDN, Akamai mPulse + 23 more | Find emails |
| ezit.hu | #57,925 | Apache, Bootstrap, DigiCert + 13 more | Find emails |
| emimino.cz | #57,927 | Gemius, Google Tag Manager, Let's Encrypt | Find emails |
| green-acres.fr | #57,947 | ASP.NET, ConsentMo, Elementor + 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 →