What powers jihyo.co.jp?
Last seen Oct 2026 · 16 technologies across 12 categories
Advertising
Google AdSense
since Jan 2022
Analytics
Google Analytics
since Jun 2020
CDN
Font scripts
Google Font API
since Jun 2020
JavaScript libraries
Performance
Priority Hints
since Sep 2026
Programming languages
PHP
since Sep 2021
Security
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Jun 2020
Web frameworks
CodeIgniter
since Sep 2021
Web servers
Nginx
since Jun 2020
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 65% phone
- 35% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.25 / 10 · ranked #1,199,206 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 5.9 MB · 108 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Xserver (183.181.85.28)
- DNS: Onamae.com
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: CloudSecure Corporation, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 804,670
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Priority Hints Sep 2026