What powers tenka-1.com?
Last seen May 2026 · 13 technologies across 9 categories
A/B Testing
Karte
since May 2026
Analytics
Google Analytics
since Jan 2019
Microsoft Clarity
since Jul 2024
CDN
cdnjs
since Oct 2021
Cloudflare
since May 2022
Ecommerce
Cart Functionality
since Aug 2020
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Programming languages
Web servers
Apache HTTP Server
since Jul 2022
Audience
- 51% desktop
- 49% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.65 / 10 · ranked #20,809,380 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 15.1 MB · 185 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Karte May 2026
- detected Microsoft Clarity Nov 2025