What powers 
tennis.jp?
Last seen Oct 2026 · 41 technologies across 24 categories
Advertising
Analytics
CDN
CMS
Cookie compliance
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Page builders
Payment processors
Performance
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
Widgets
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 75% phone
- 25% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.48 / 10 · ranked #917,841 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 3.5 MB · 179 requests
- WordPress theme: lightning (child: tennisjp-theme) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (54.240.184.9)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Amazon Trust Services, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 2,867,158, 3 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| tennis.jp | 34 |
| www.tennis.jp | 16 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Backbone.js Aug 2026
- detected Underscore.js Aug 2026
- detected WooCommerce Subscriptions Aug 2026
- dropped Select2 Mar 2026
- dropped Moment.js Dec 2025
- dropped React Dec 2025
- dropped WooCommerce Subscriptions Dec 2025