What powers mantra.co.jp?
Last seen Jun 2026 · 28 technologies across 17 categories
Analytics
Google Analytics
since May 2020
CDN
CMS
Sanity
since Feb 2026
Amazon SES
since Mar 2026
Font scripts
Google Font API
since May 2020
Issue trackers
Sentry
since Jul 2022
JavaScript frameworks
Vue.js
since Jul 2022
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since May 2020
Performance
Partytown
since Feb 2026
Programming languages
Static site generator
UI frameworks
Tailwind CSS
since Feb 2026
Vuetify
since Jul 2022
Web frameworks
Express
since Jul 2022
Web servers
Cowboy
since Jul 2022
Webmail
Google Workspace
since Aug 2022
Audience
- 100% desktop
Japan
South Korea
Taiwan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.75 / 10 · ranked #278,069 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.8 s |
| INP | 200 ms |
| CLS | 0.4 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 8.2 MB · 50 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| dls.biz.mantra.co.jp | 17 |
| biz.mantra.co.jp | 13 |
| mantra.co.jp | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon SES Mar 2026
- dropped cdnjs Mar 2026
- dropped Cloudflare Mar 2026
- dropped Google Hosted Libraries Mar 2026
- dropped HSTS Mar 2026
- dropped jQuery Mar 2026
- dropped jQuery Migrate Mar 2026
- dropped Slick Mar 2026
- detected Astro Feb 2026
- detected Partytown Feb 2026
- detected Sanity Feb 2026
- detected Tailwind CSS Feb 2026
- detected PDF.js Oct 2025