What powers 
i-tennis.co.jp?
Last seen Sep 2026 · 24 technologies across 12 categories
Advertising
Analytics
Authentication
CMS
Databases
Font scripts
JavaScript libraries
Performance
Programming languages
Tag managers
Web servers
WordPress plugins
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
AI Crawlers
No AI crawlers blocked
Audience
- 83% phone
- 17% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.52 / 10 · ranked #875,684 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 16.1 MB · 110 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on GMO Internet (157.7.107.122)
- DNS: Muumuu Domain
- Email: Lolipop
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,396,673, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| column.i-tennis.co.jp | 20 |
| www.i-tennis.co.jp | 12 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft Clarity Jul 2026
- dropped Amazon ALB Jun 2026
- dropped Amazon Web Services Jun 2026
- detected Slick May 2026
- detected Yahoo Advertising May 2026
- dropped Yahoo Advertising Apr 2026
- detected Twitter Emoji (Twemoji) Dec 2025