What powers zerohz.tokyo?

Last seen Oct 2026 · 14 technologies across 9 categories

CDN

cdnjs
since Jul 2022
Cloudflare
since Jul 2022
Google Hosted Libraries
since Jul 2022

Font scripts

Google Font API
since Jul 2022

Issue trackers

Sentry
since Jul 2022

JavaScript frameworks

JSS
since Jul 2022
Next.js v10.0.5
since Jul 2022
React
since Jul 2022

Miscellaneous

Open Graph
since Sep 2022
Webpack
since Jul 2022

Programming languages

Node.js
since Jul 2022

UI frameworks

MUI
since Jul 2022

Video players

YouTube
since Jul 2022

Widgets

Spotify Widgets
since Jul 2022

AI Crawlers

No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.

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

See who blocks each AI crawler across the web

AI Crawlers

No robots.txt, all AI crawlers allowed

Full breakdown

Audience

  • 81% phone
  • 19% desktop
  • Japan

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

Open Page Rank

2.76 / 10 · ranked #2,068,178 of all domains

24 referring domains · OpenPageRank

Core Web Vitals

LCP1.1 s
INP50 ms
CLS0
TTFB400 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: Japanese
  • Weight: 4.3 MB · 134 requests
  • Structured data: OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Oct 2026.

Infrastructure

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

Full technology history →
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