What powers scienhub.com?

Last seen Aug 2026 · 11 technologies across 9 categories

Analytics

CDN

Cloudflare
since May 2024

Email

Mailgun
since May 2024

Issue trackers

Sentry
since Jul 2026

JavaScript frameworks

TanStack Start
since Aug 2026

JavaScript graphics

Three.js v185
since Jul 2026

Miscellaneous

HTTP/3
since May 2024
Open Graph
since Sep 2024
PWA
since May 2024

Tag managers

Google Tag Manager
since May 2025

UI frameworks

Tailwind CSS
since Jul 2026

AI Crawlers

Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.

  • robots.txt found
  • llms.txt not checked
  • ai.txt not checked

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Open Page Rank

1.66 / 10 · ranked #5,221,963 of all domains

14 referring domains · OpenPageRank

Infrastructure

  • Hosted on Cloudflare (104.21.26.51, IPv6)
  • DNS: Cloudflare DNS
  • Email: larksuite.com
  • Email security: SPF (soft fail), no DMARC record, DNSSEC signed
  • SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
  • Common Crawl link graph: rank 2,128,270, 2 hosts
  • Verified with: Google

DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted

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