What powers fishindex.net?

Last seen Oct 2026 · 12 technologies across 7 categories

Analytics

Google Analytics
since Jul 2026
Microsoft Clarity
since Jul 2026

CDN

Cloudflare
since Jul 2026

Font scripts

Google Font API
since Jul 2026

Miscellaneous

HTTP/3
since Jul 2026
Open Graph
since Jul 2026
PWA
since Jul 2026
RSS
since Jul 2026

Programming languages

Node.js
since Jul 2026

Web frameworks

Express
since Jul 2026

Webmail

Microsoft 365
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

Audience

  • 68% desktop
  • 32% phone
  • United Kingdom

Where the site's Chrome visitors come from, largest estimated audience first.

Core Web Vitals

LCP1.3 s
CLS0.3

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: English
  • CDN: Cloudflare
  • Weight: 0.6 MB · 84 requests

Homepage as crawled by the HTTP Archive, Oct 2026.

Organisation

  • Fish Index

From the homepage's own structured data (Oct 2026).

Infrastructure

  • Hosted on Cloudflare (104.21.40.76, IPv6)
  • DNS: Cloudflare DNS
  • Email: Microsoft 365
  • Email security: SPF (soft fail), DMARC monitor only
  • SSL: Let's Encrypt, ECDSA P256, wildcard, expires Jan 2027
  • Common Crawl link graph: rank 117,072,973
  • Verified with: Google, Microsoft 365

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

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