What powers webpage21.jp?
Last seen Sep 2026 · 5 technologies across 5 categories
Analytics
Google Analytics
since Feb 2026
Font scripts
Google Font API
since Dec 2024
JavaScript libraries
PaaS
Amazon Web Services
since Sep 2023
Web servers
Apache HTTP Server
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 51% desktop
- 49% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.68 / 10 · ranked #772,095 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 1.0 MB · 45 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on TOKAI TOKAI Communications Corporation (42.125.235.234)
- DNS: Amazon Route 53
- Email: Trend Micro Email Security
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 17,998,609, 10 hosts
- Verified with: Trend Micro Email Security
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| shimane-roushikyo.cgisvr01.webpage21.jp | 5 |
| sk2.cgisvr01.webpage21.jp | 3 |
| yg-coop.cgisvr01.webpage21.jp | 3 |
| www.webpage21.jp | 2 |
Full technology history →
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Recent changes
- detected Google Analytics Feb 2026