What powers jpo.or.jp?
Last seen Oct 2026 · 22 technologies across 14 categories
Analytics
Google Analytics
since Jan 2019
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
Font Awesome
since Jan 2019
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Jan 2019
Programming languages
TypeScript
since Oct 2025
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Web frameworks
Laravel
since Apr 2022
Microsoft ASP.NET
since Jan 2019
Web server extensions
Web servers
Widgets
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
- Oct 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
- Sep 2026 * added to robots.txt
- Sep 2026 robots.txt appeared
- Sep 2026 * removed from robots.txt
- Aug 2026 robots.txt removed
Top backlinks
| From | Anchor text |
|---|---|
| editeur.org | JPO |
| oshiete.goo.ne.jp | http://jpo.or.jp/magcode/info/format.html |
| current.ndl.go.jp | http://jpo.or.jp/business/business05.html#EDItEUR |
| hon.jp | 本の検索サイト「PubＤＢ」名称変更のお知らせ |
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.47 / 10 · ranked #162,806 of all domains
98 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- Weight: 0.7 MB · 36 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Japan Publishing Organization For Information Infrastructure Development
- Founded: 2002
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on Sakura Internet (153.127.186.226)
- DNS: Muumuu Domain
- Email: Sakura Internet
- Email security: SPF (soft fail), DMARC quarantine
- SSL: JPRS, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 585,072, 7 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| isbn.jpo.or.jp | 12 |
| jpro2.jpo.or.jp | 9 |
| jpo.or.jp | 5 |
| magcode.jpo.or.jp | 4 |
| www.jpo.or.jp | 4 |