What powers 
jonan.jp?
Last seen Oct 2026 · 18 technologies across 11 categories
Analytics
Google Analytics
since Jun 2021
CDN
Google Hosted Libraries
since Feb 2022
CMS
Databases
MySQL
since Jun 2021
Font scripts
Google Font API
since Jun 2021
Twitter Emoji (Twemoji)
since Jun 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
SEO
Tag managers
Google Tag Manager
since Jun 2021
Web servers
Apache HTTP Server
since Jan 2019
Nginx
since Jun 2021
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Nov 2026 * removed from robots.txt
- Nov 2026 robots.txt removed
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 57% phone
- 43% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.21 / 10 · ranked #451,379 of all domains
45 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Weight: 2.3 MB · 88 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 学校法人 城南学園 (Osaka University of Comprehensive Children education on Wikidata)
- Founded: 2006
- Country: Japan
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Xserver (183.90.235.21)
- DNS: jpdirect.jp
- Email: no MX record returned
- SSL: DigiCert, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 10,783,023, 6 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| soho.jonan.jp | 16 |
| tandai.jonan.jp | 14 |
| www.jonan.jp | 14 |
| youchien.jonan.jp | 14 |
| jonan.jp | 12 |
| unipa.jonan.jp | 2 |
Full technology history →
Report an incorrect detection
Recent changes
- detected core-js Apr 2026
- detected Facebook Pixel Apr 2026
- detected Twitter Emoji (Twemoji) Jan 2026