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 |
|---|---|---|---|
| glav.su | #113,959 | Nginx, PHP, reCAPTCHA v2 | Find emails |
| akf-shop.de | #113,979 | Amazon (ACM), Amazon Route 53, Google Analytics + 6 more | Find emails |
| spp.org | #114,010 | ASP.NET, Google Analytics, Google Fonts + 3 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| #114,030 |
| Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 7 more |
| Find emails |
| ortlieb.com | #114,064 | Cloudflare edge/CDN, CookieFirst, Judge.me + 4 more | Find emails |
| fiido.com | #114,084 | Alibaba Cloud DNS, Cloudflare edge/CDN, Google Fonts + 15 more | Find emails |
| kyoceradocumentsolutions.eu | #114,096 | Adobe Experience Cloud (Launch), Amazon Route 53, Fastly + 4 more | Find emails |
| wanteeed.com | #114,104 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 4 more | Find emails |
| idc.md | #114,145 | Bootstrap, Google Analytics, Google Fonts + 6 more | Find emails |
| metroweekly.com | #114,170 | Apache, DoubleClick (Google Ads), Font Awesome + 11 more | Find emails |
| paramountshop.com | #114,184 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Ketch + 8 more | Find emails |
| commarts.com | #114,187 | ASP.NET, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| drivetime.com | #114,193 | Azure API Management, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| lupasearch.com | #114,198 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| campaignlegal.org | #114,209 | AddToAny, Adobe Fonts (Typekit), Bluesky + 18 more | Find emails |
| simpletire.com | #114,231 | Akamai Edge DNS, Google Identity Services, Google Maps + 11 more | Find emails |
| duhosting.tz | #114,250 | Apache, Font Awesome, Google Analytics + 6 more | Find emails |
| penndot.gov | #114,256 | Adobe Experience Cloud (Launch), Azure Front Door, Coveo + 5 more | Find emails |
| federalpay.org | #114,274 | Bootstrap, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| all4cycling.com | #114,280 | Cloudflare edge/CDN, Judge.me, Let's Encrypt + 4 more | Find emails |
| victimsupport.org.uk | #114,289 | CookieYes, DoubleClick (Google Ads), Font Awesome + 8 more | Find emails |
| iamresponding.com | #114,293 | ASP.NET, Bootstrap, Cloudflare + 11 more | Find emails |
| melbicom.net | #114,296 | Fancybox, Font Awesome, Google Analytics + 7 more | Find emails |
| spectrocoin.com | #114,299 | Adform, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| newsgroupdirect.com | #114,315 | All in One SEO, BitPay, Bootstrap + 14 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 →