What powers centou.jp?
Last seen Aug 2026 · 21 technologies across 14 categories
Analytics
Google Analytics
since Sep 2023
CDN
Cloudflare
since Sep 2023
CMS
microCMS
since Jul 2026
Development
Turbopack
since Feb 2026
JavaScript frameworks
JavaScript libraries
Marketing automation
HubSpot
since Dec 2023
Miscellaneous
Open Graph
since Sep 2023
Webpack
since Oct 2025
PaaS
Amazon Web Services
since Sep 2023
Vercel
since Oct 2025
Performance
Priority Hints
since Oct 2025
Programming languages
Node.js
since Sep 2023
Security
Cloudflare Bot Management
since Sep 2023
HSTS
since Oct 2025
Tag managers
Google Tag Manager
since Sep 2023
UI frameworks
Tailwind CSS
since Oct 2025
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Aug 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 88% desktop
- 12% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.80 / 10 · ranked #1,987,155 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 2.2 MB · 110 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| centou.jp | 19 |
| playground.centou.jp | 16 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Amazon CloudFront Aug 2026
- dropped Firebase Jul 2026
- dropped Google Cloud Jul 2026
- dropped Google Cloud CDN Jul 2026
- dropped Google Font API Jul 2026
- dropped GSAP Jul 2026
- dropped HTTP/3 Jul 2026
- dropped jsDelivr Jul 2026
- detected microCMS Jul 2026
- dropped Nuxt.js Jul 2026
- dropped STUDIO Jul 2026
- dropped Twitter Ads Jul 2026
- dropped Vue.js Jul 2026
- dropped HubSpot Analytics Jun 2026