What powers quantphys.org?

Last seen Oct 2026 · 17 technologies across 14 categories

Analytics

Google Analytics
since May 2022

CDN

Google Hosted Libraries
since May 2022

CMS

WordPress v5.9.19
since Jul 2020

Databases

MySQL
since Jul 2020

Font scripts

Google Font API
since Oct 2022
Twitter Emoji (Twemoji) v13.1.0
since Jul 2020

Hosting

WordPress Multisite
since Jun 2024

JavaScript libraries

jQuery v1.11.0
since Jul 2020
Slick
since May 2022

Miscellaneous

RSS
since Dec 2022

Page builders

WordPress Block Editor
since Jul 2024

Programming languages

PHP
since Jul 2020

Security

HSTS
since Sep 2022

UI frameworks

Animate.css
since May 2022

Web servers

Nginx
since Jul 2020
OpenResty
since Jul 2020

WordPress themes

Lightning
since Mar 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

  • Japan

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

Open Page Rank

2.96 / 10 · ranked #1,653,812 of all domains

19 referring domains · OpenPageRank

Core Web Vitals

LCP1.5 s
INP25 ms
CLS0
TTFB1000 ms

Real user p75, Chrome UX Report, Oct 2026.

Page

  • Language: Japanese
  • Weight: 1.1 MB · 59 requests

Homepage as crawled by the HTTP Archive, Oct 2026.

Infrastructure

  • Hosted on FC2-INC-2 (104.244.99.118)
  • Email: quantphys.org
  • Email security: SPF (soft fail), no DMARC record
  • SSL: Let's Encrypt, RSA 2048, wildcard, expires Jan 2027
  • Common Crawl link graph: rank 2,309,484

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

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