What powers 
kindaikagaku.co.jp?
Last seen Oct 2026 · 14 technologies across 10 categories
Analytics
Google Analytics
since Aug 2019
CDN
cdnjs
since Mar 2022
Cloudflare
since May 2022
Google Hosted Libraries
since Mar 2022
jsDelivr
since Nov 2025
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
PHP
since Mar 2022
Web servers
Apache HTTP Server
since Feb 2019
Webmail
Google Workspace
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
Top backlinks
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
- 54% phone
- 43% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.81 / 10 · ranked #127,777 of all domains
128 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 14.4 MB · 70 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (203.183.234.62)
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 4096, wildcard, expires Nov 2026
- Common Crawl link graph: rank 47,567, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted