Build Tools & Dev Infrastructure
1,957 of the 1,000,000 top sites in our Tranco top-1M census run Rollup (0.2%). A JavaScript module bundler that compiles small code pieces into a single optimized bundle, popular for building libraries. Detection is homepage-level HTML/header fingerprinting, so a site can run Rollup on other pages without it showing here.
Other build tools & dev infrastructure
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | zoom.us | #76 (Tranco) | Find emails |
| 2 | shein.com | #491 (Tranco) | Find emails |
| 3 | newrelic.com | #718 (Tranco) | Find emails |
| 4 | fiverr.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| kayak.com.pa | #569,903 | Fastly, Google Analytics, Google Tag Manager + 2 more | Find emails |
| dlpguide.com | #570,862 | Bluesky, Google AdSense, Google Analytics + 8 more | Find emails |
| uberkinky.com | #571,046 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| #769 (Tranco) |
| Find emails |
| 5 | espncricinfo.com | #1,092 (Tranco) | Find emails |
| valuo.cz | #571,189 | AOS, Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| unfoldwp.com | #571,262 | All in One SEO, Cloudflare, Google Analytics + 7 more | Find emails |
| reviewmentor.com | #571,406 | DoubleClick (Google Ads), Google AdSense, Google Analytics + 8 more | Find emails |
| mimuu.com | #571,455 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| saguenay.ca | #572,363 | Google Analytics, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| wp-kama.ru | #572,558 | Feedburner, Google Analytics, Google Tag Manager + 9 more | Find emails |
| e-lenovo.gr | #573,277 | Google Tag Manager, Let's Encrypt, LiteSpeed + 1 more | Find emails |
| instituteofcoaching.org | #573,984 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| momondo.be | #574,034 | Fastly, Google Analytics, Google Tag Manager + 2 more | Find emails |
| uncutmaza.com.im | #574,734 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| icthealth.nl | #575,110 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 5 more | Find emails |
| cyberdevs.co.za | #575,279 | Let's Encrypt, LiteSpeed, WhatsApp Business (click-to-chat) + 1 more | Find emails |
| mongoengine.org | #576,118 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| mestokladno.cz | #576,521 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| flyebl.com | #576,637 | Bunny Fonts, Cloudflare, Cloudflare edge/CDN + 2 more | Find emails |
| baneasa.ro | #576,911 | Azure DNS, Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| hitclub.my | #577,225 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| transunion.hk | #577,702 | CSC (Digital Brand Services), Cloudflare Bot Management, Cloudflare edge/CDN | Find emails |
| tarh.ir | #577,996 | Let's Encrypt, Swiper | Find emails |
| streamingunity.buzz | #578,257 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| talento-humano.co | #578,514 | Divi, Google Analytics, Google Fonts + 9 more | Find emails |
| asknowas.co.jp | #579,120 | All in One SEO, Font Awesome, Google Analytics + 12 more | Find emails |
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 →