What powers 
telsys.co.jp?
Last seen Sep 2026 · 17 technologies across 13 categories
Caching
CMS
Databases
Font scripts
JavaScript libraries
Operating systems
Programming languages
Security
Video players
Web server extensions
Web servers
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 * added to robots.txt
- Sep 2026 petalbot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.37 / 10 · ranked #422,448 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 6.9 MB · 69 requests
- WordPress theme: vogue_tcd051 · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (210.129.54.234)
- DNS: Sakura Internet
- Email: telsys.co.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,008,444, 2 hosts
- Verified with: Google
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 Debian Sep 2026
- detected WordPress Super Cache Sep 2026
- dropped W3 Total Cache Jun 2026
- detected Twitter Emoji (Twemoji) Apr 2026