What powers grt-esl.jp?

Last seen Aug 2026 · 31 technologies across 18 categories

Advertising

Yahoo Advertising
since Aug 2022

Analytics

Facebook Pixel v2.9.90
since Aug 2022
Google Analytics
since Aug 2022

CDN

Cloudflare
since Jun 2026
Google Hosted Libraries
since Aug 2022
jQuery CDN
since Jun 2026

CMS

WordPress v6.9.4
since Aug 2022

Databases

MySQL
since Aug 2022

Font scripts

Google Font API
since Aug 2022
Twitter Emoji (Twemoji)
since Aug 2022

JavaScript frameworks

Socket.io
since Jan 2023

JavaScript libraries

core-js v3.39.0
since Aug 2022
jQuery v3.6.0
since Aug 2022
jQuery Migrate v3.4.1
since Aug 2022
Slick
since Aug 2022
Swiper
since Nov 2022

Miscellaneous

HTTP/3
since Jun 2026
Open Graph
since Nov 2022
RSS
since Jan 2023

Performance

Priority Hints
since Aug 2023

Programming languages

Node.js
since Jan 2023
PHP
since Aug 2022

Security

HSTS
since Jun 2026
reCAPTCHA
since Aug 2022

Static site generator

Astro v5.18.1
since Jun 2026

Tag managers

Google Tag Manager
since Aug 2022

UI frameworks

Tailwind CSS
since Jun 2026

Web servers

Nginx
since Aug 2022

WordPress plugins

Contact Form 7 v6.1.6
since Aug 2022

WordPress themes

Lightning
since Aug 2022

AI Crawlers

Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Aug 2026.

Training crawlers

  • Applebot-Extended Blocked
  • Bytespider Blocked
  • CCBot Blocked
  • ClaudeBot Blocked
  • Google-Extended Blocked
  • GPTBot Blocked
  • meta-externalagent Blocked

Search and AI assistants

  • Amazonbot Blocked

The other 25 AI crawlers we track are not mentioned and stay allowed by default.

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

Content Signals: search=yes ai-train=no declared in robots.txt

See who blocks each AI crawler across the web

AI Crawlers

8 of 33 AI crawlers blocked

Standards: Content Signals

Full breakdown

Audience

  • 71% desktop
  • 29% phone
  • Japan

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

Open Page Rank

1.56 / 10 · ranked #6,026,585 of all domains

4 referring domains · OpenPageRank

Core Web Vitals

LCP1.4 s
CLS0
TTFB400 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Japanese
  • CDN: Cloudflare
  • Weight: 3.5 MB · 82 requests
  • Structured data: OpenGraph

Homepage as crawled by the HTTP Archive, Aug 2026.

Subdomains

HostTechs
rental.grt-esl.jp 23
grt-esl.jp 15

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