What powers otsukai.com?
Last seen Jun 2026 · 22 technologies across 16 categories
Analytics
Google Analytics
since Feb 2020
Microsoft Clarity
since Apr 2025
CDN
Amazon SES
since Nov 2025
Font scripts
JavaScript frameworks
Vue.js
since Mar 2020
JavaScript graphics
Exhibit
since Dec 2020
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Feb 2020
PaaS
Amazon Web Services
since Feb 2020
Programming languages
RUM
Datadog
since Aug 2021
Security
Cloudflare Bot Management
since Jul 2025
Tag managers
Google Tag Manager
since Feb 2020
UI frameworks
Element UI
since Jul 2023
Web servers
Nginx
since Feb 2020
Webmail
Google Workspace
since Aug 2022
Audience
- 76% phone
- 24% desktop
Japan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.95 / 10 · ranked #3,710,128 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.9 s |
| INP | 100 ms |
| CLS | 0.75 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Amazon CloudFront
- Weight: 1.8 MB · 116 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| otsukai.com | 21 |
| www.otsukai.com | 21 |
| func.otsukai.com | 17 |
Full technology history →
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Recent changes
- detected Amazon SES Nov 2025