Security & WAF
15,494 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA v3 (1.5%). Google's bot-detection service that scores traffic in the background without user interaction to block automated abuse. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA v3 on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | taboola.com | #187 (Tranco) | Find emails |
| 2 | afternic.com | #315 (Tranco) | Find emails |
| 3 | g.page | #451 (Tranco) | Find emails |
| 4 | teamviewer.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| thains.co.th | #13,572 | Apache, Bootstrap, Google Analytics + 6 more | Find emails |
| uwm.edu | #13,650 | AddToAny, Adobe Fonts (Typekit), Apache + 14 more | Find emails |
| ably-realtime.com | #13,676 | Cloudflare, Cloudflare edge/CDN, Gatsby + 11 more | Find emails |
| #561 (Tranco) |
| Find emails |
| 5 | klaviyo.com | #597 (Tranco) | Find emails |
| merck.com |
| #13,695 |
| Brightcove, Google Maps, Google Tag Manager + 12 more |
| Find emails |
| publishersweekly.com | #13,699 | Amazon (ACM), Amazon Route 53, Google Analytics + 13 more | Find emails |
| nintendolife.com | #13,722 | Amazon Advertising, Bluesky, Cloudflare + 14 more | Find emails |
| dialpad.com | #13,729 | Amazon Route 53, Amplitude, Cloudflare edge/CDN + 13 more | Find emails |
| shadowserver.org | #13,848 | Bluesky, Bunny CDN, BunnyCDN + 6 more | Find emails |
| stripes.com | #13,939 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 19 more | Find emails |
| campaignmonitor.com | #13,941 | Campaign Monitor, Cloudflare Bot Management, Cloudflare edge/CDN + 14 more | Find emails |
| speedsmart.net | #14,026 | CDN Fonts, Cloudflare Web Analytics, Fancybox + 14 more | Find emails |
| advertising.com | #14,125 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| freddiemac.com | #14,215 | Adobe Fonts (Typekit), Amazon CloudFront, Cloudflare Bot Management + 12 more | Find emails |
| mywhc.ca | #14,248 | Bootstrap, ClickCease, Cloudflare edge/CDN + 19 more | Find emails |
| toronto.ca | #14,263 | Amazon CloudFront, Bootstrap, Font Awesome + 6 more | Find emails |
| bhf.org.uk | #14,329 | ASP.NET, Azure Front Door, CSC (Digital Brand Services) + 10 more | Find emails |
| parspack.net | #14,375 | Google Analytics, Google Tag Manager, Gravatar + 3 more | Find emails |
| wmich.edu | #14,473 | Adobe Fonts (Typekit), Drupal, Fastly + 10 more | Find emails |
| cartier.com | #14,499 | AB Tasty, Akamai Bot Manager, Akamai Edge DNS + 10 more | Find emails |
| labcorp.com | #14,529 | AOS, Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM) + 17 more | Find emails |
| mikmak.ai | #14,594 | AOS, Amazon CloudFront, Amazon Route 53 + 20 more | Find emails |
| loft.com | #14,617 | Adobe Experience Cloud (Launch), Bread Financial (Comenity), CSC (Digital Brand Services) + 9 more | Find emails |
| art.pl | #14,633 | Let's Encrypt, Nginx, PHP + 3 more | Find emails |
| notamedia.ru | #14,676 | Bitrix, Google Hosted Libraries, Google Maps + 10 more | Find emails |
| shinyapps.io | #14,748 | Amazon (ACM), Amazon Route 53, Bootstrap + 6 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 →