What powers seirei.ed.jp?
Last seen Aug 2026 · 20 technologies across 13 categories
Advertising
Google Ads
since Dec 2022
Yahoo Advertising
since Apr 2022
Analytics
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since Jan 2019
CDN
jsDelivr
since Sep 2025
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2025
Performance
Priority Hints
since Sep 2025
Programming languages
Tag managers
Google Tag Manager
since Jan 2019
Web servers
Nginx
since Jan 2019
WordPress plugins
Responsive Lightbox & Gallery
since Feb 2022
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 88% phone
- 10% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.28 / 10 · ranked #1,157,154 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 22.5 MB · 55 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.seirei.ed.jp | 17 |
| seirei.ed.jp | 11 |