What powers cello.or.jp?
Last seen Jun 2026 · 23 technologies across 14 categories
Analytics
Google Analytics
since Feb 2020
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
CMS
WordPress
since Feb 2020
Databases
MySQL
since Feb 2020
Font scripts
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Feb 2020
Security
reCAPTCHA
since Jun 2023
Web servers
Nginx
since Feb 2020
Widgets
FlexSlider
since Feb 2020
WordPress plugins
The Events Calendar
since Jun 2022
WP-PageNavi
since Feb 2022
Audience
- 74% phone
- 26% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.79 / 10 · ranked #2,011,187 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 3.5 MB · 130 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025