What powers cotree.co?
Last seen Jun 2026 · 16 technologies across 13 categories
Analytics
Google Analytics
since Jan 2019
CDN
Google Cloud CDN
since Dec 2025
Databases
Firebase
since Jul 2021
Font scripts
Google Font API
since Oct 2020
IaaS
Google Cloud
since Jul 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Dec 2025
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Aug 2022
Page builders
STUDIO
since Jul 2021
Performance
Google Cloud Trace
since Jun 2026
Programming languages
Node.js
since Oct 2020
Tag managers
Google Tag Manager
since Jan 2019
Audience
- 58% desktop
- 42% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.93 / 10 · ranked #1,717,989 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 3.4 MB · 73 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Cloud Trace Jun 2026
- dropped Priority Hints May 2026
- detected Priority Hints Feb 2026
- detected Google Cloud CDN Dec 2025
- detected HTTP/3 Dec 2025