What powers kurakagaku.jp?
Last seen Aug 2026 · 20 technologies across 13 categories
Analytics
Google Analytics
since Feb 2020
CMS
Databases
MySQL
since Mar 2025
Font scripts
Google Font API
since Mar 2025
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Mar 2025
RSS
since Mar 2025
Page builders
WordPress Block Editor
since Mar 2025
Performance
LazySizes
since Mar 2025
Priority Hints
since Mar 2025
Programming languages
PHP
since Mar 2025
Web servers
Nginx
since Feb 2020
WordPress plugins
Smash Balloon Instagram Feed
since Dec 2025
WordPress themes
Lightning
since Mar 2025
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
- 91% phone
- 9% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.25 / 10 · ranked #443,793 of all domains
66 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.9 MB · 111 requests
- WordPress theme: lightning (child: lightning-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| kurakagaku.jp | 18 |
| www.kurakagaku.jp | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped WordPress Super Cache May 2026
- detected Priority Hints Dec 2025
- detected Smash Balloon Instagram Feed Dec 2025