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 |
|---|---|---|---|
| canreg.com | #98,752 | Apache, Let's Encrypt, PHP + 3 more | Find emails |
| bra.gov.bb | #98,765 | ASP.NET, Google Analytics, Google Fonts + 7 more | Find emails |
| switchtel.co.za | #98,771 | Apache, Font Awesome, Google Analytics + 11 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| bloom.host |
| #98,789 |
| Algolia, Bootstrap, Cloudflare + 10 more |
| Find emails |
| damro.lk | #98,799 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| tangent.com | #98,803 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 12 more | Find emails |
| mega-image.ro | #98,864 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai edge/CDN + 8 more | Find emails |
| route4me.com | #98,867 | Bootstrap, Cloudflare, Cloudflare Bot Management + 11 more | Find emails |
| msd.com | #98,870 | Amazon CloudFront, Google Maps, Google Tag Manager + 12 more | Find emails |
| domainnetwork.se | #98,876 | Azure Front Door, Bootstrap, Google Tag Manager + 5 more | Find emails |
| acwo.com | #98,886 | Cloudflare edge/CDN, Font Awesome, GoKwik + 14 more | Find emails |
| magicneedles.in | #98,889 | Cloudflare edge/CDN, Font Awesome, Let's Encrypt + 5 more | Find emails |
| apoioaospais.com.br | #98,892 | Amazon Route 53, Google AdSense, Google Analytics + 5 more | Find emails |
| your-webhost.nl | #98,915 | DigiCert, Google Analytics, Google Fonts + 6 more | Find emails |
| imperialhotel.co.jp | #98,938 | Adobe Advertising Cloud, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 22 more | Find emails |
| olaplex.com | #98,939 | Bazaarvoice, Bootstrap, ClickTale (Contentsquare) + 12 more | Find emails |
| clook.net | #98,949 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 14 more | Find emails |
| econotimes.com | #98,960 | Clicky, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| worldcall.net.pk | #98,965 | Bootstrap, Font Awesome, Google Analytics + 12 more | Find emails |
| tirant.com | #98,967 | Cloudflare, Cloudflare edge/CDN, Fancybox + 8 more | Find emails |
| pbnmonster.com | #98,972 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 13 more | Find emails |
| dieboldnixdorf.com | #98,995 | ASP.NET, Amazon CloudFront, DigiCert + 10 more | Find emails |
| commercialrealestate.com.au | #99,012 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 14 more | Find emails |
| liberal.ca | #99,013 | Amazon Route 53, Bluesky, DigiCert + 9 more | Find emails |
| benchmade.com | #99,059 | Cloudflare edge/CDN, Global-e, Let's Encrypt + 10 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 →