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 |
|---|---|---|---|
| nanit.com | #7,555 | AB Tasty, Amazon Route 53, Attentive + 14 more | Find emails |
| nuget.org | #7,570 | ASP.NET, Azure API Management, Azure DNS + 8 more | Find emails |
| sojern.com | #7,574 | AWS Lambda, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| #594 (Tranco) |
| Find emails |
| 5 | cdnvideo.ru | #598 (Tranco) | Find emails |
| delaware.gov |
| #7,594 |
| ASP.NET, AngularJS, Bootstrap + 19 more |
| Find emails |
| nxp.com | #7,617 | Adobe Experience Cloud (Launch), Akamai edge/CDN, Akamai mPulse + 8 more | Find emails |
| confluent.cloud | #7,661 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| pornzog.com | #7,671 | ExoClick, Let's Encrypt, Nginx + 3 more | Find emails |
| pixels.com | #7,680 | Amazon (ACM), Amazon Route 53, Apache + 2 more | Find emails |
| c-span.org | #7,716 | 33Across, AWS WAF, Adingo + 43 more | Find emails |
| pornpics.de | #7,856 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| eroprofile.com | #7,948 | ExoClick, Google Analytics, Let's Encrypt + 3 more | Find emails |
| horoscope.com | #8,007 | BlogHer Ads (SHE Media), Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| doz.pl | #8,015 | Azure Front Door, DigiCert, DoubleClick (Google Ads) + 5 more | Find emails |
| pocketoption.com | #8,040 | AppsFlyer, Google Fonts, Google Tag Manager + 11 more | Find emails |
| idokep.hu | #8,066 | Bootstrap, Cloudflare, DigiCert + 7 more | Find emails |
| ipma.pt | #8,070 | Font Awesome, Google Analytics, Google Tag Manager + 6 more | Find emails |
| vocabulary.com | #8,168 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 8 more | Find emails |
| pdfcoffee.com | #8,239 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| aniworld.to | #8,261 | Cloudflare, DDoS-Guard, Font Awesome + 7 more | Find emails |
| intensedebate.com | #8,268 | Google Analytics, Gravatar, Let's Encrypt + 5 more | Find emails |
| javhd.today | #8,424 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| usg.edu | #8,440 | Amazon CloudFront, Apache, Atlassian Cloud + 11 more | Find emails |
| amateri.com | #8,458 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| onlinejobs.ph | #8,495 | Bootstrap, Clicky, Cloudflare + 16 more | Find emails |
| wolvden.com | #8,541 | Bootstrap, Google Analytics, Google Fonts + 9 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 →