Security & WAF
56,626 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA v2 (5.7%). Google's challenge-response service that verifies whether a site visitor is human or a bot. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA v2 on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | apache.org | #125 (Tranco) | Find emails |
| 2 | w3.org | #184 (Tranco) | Find emails |
| 3 | pushy.io | #467 (Tranco) | Find emails |
| 4 | sharethrough.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| stltoday.com | #12,984 | Bluesky, DoubleClick (Google Ads), Font Awesome + 14 more | Find emails |
| simpleflying.com | #13,007 | Google Analytics, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| moneris.com | #13,033 | Akamai Edge DNS, Amazon CloudFront, Atlassian Cloud + 21 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| fasthosts.co.uk | #13,068 | ASP.NET, Apache, Astro + 4 more | Find emails |
| techdirt.com | #13,184 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 11 more | Find emails |
| zahid.host | #13,210 | Django, Google Analytics, Google Tag Manager + 5 more | Find emails |
| nic.lv | #13,266 | Let's Encrypt, reCAPTCHA | Find emails |
| aeaweb.org | #13,310 | Adobe Fonts (Typekit), Apache, Bluesky + 8 more | Find emails |
| tlauncher.org | #13,314 | Cloudflare, DDoS-Guard, PHP + 2 more | Find emails |
| rrpicturearchives.net | #13,380 | ASP.NET, Bootstrap, DataTables + 10 more | Find emails |
| pushy.me | #13,403 | Amazon (ACM), Amazon Route 53, Bootstrap + 12 more | Find emails |
| premiumtimesng.com | #13,406 | AddThis, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| airdroid.com | #13,411 | Amazon Route 53, Google Analytics, Google Fonts + 6 more | Find emails |
| unesp.br | #13,421 | Apache, Bootstrap, DataTables + 16 more | Find emails |
| topwar.ru | #13,432 | Cloudflare, DDoS-Guard, DataLife Engine + 7 more | Find emails |
| languagetool.org | #13,440 | Amplitude, Apple Pay, Awin + 18 more | Find emails |
| cloudmark.com | #13,495 | Drupal, Google Analytics, Google Tag Manager + 5 more | Find emails |
| nd.gov | #13,510 | ConsentMo, Drupal, Microsoft 365 + 4 more | Find emails |
| thains.co.th | #13,572 | Apache, Bootstrap, Google Analytics + 6 more | Find emails |
| kinsta.com | #13,584 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 16 more | Find emails |
| sensibo.com | #13,621 | Cloudflare edge/CDN, Convert, Google Fonts + 10 more | Find emails |
| cargill.com | #13,694 | Adobe Experience Cloud (Launch), Akamai edge/CDN, Amazon Route 53 + 16 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 |
| goodsync.com | #13,821 | Cloudflare Turnstile, Google Tag Manager, Olark + 2 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 →