What powers leaner.co.jp?
Last seen Jun 2026 · 45 technologies across 25 categories
Advertising
Twitter Ads
since Aug 2024
Analytics
Google Analytics
since May 2021
Caching
Varnish
since Aug 2024
CDN
CMS
Hatena Blog
since Aug 2024
Databases
Firebase
since Nov 2024
Development
Turbopack
since Dec 2025
Font scripts
Google Font API
since May 2021
IaaS
Google Cloud
since Nov 2024
Issue trackers
Sentry
since Aug 2024
JavaScript frameworks
JavaScript libraries
Marketing automation
HubSpot
since Mar 2026
Miscellaneous
HTTP/3
since Nov 2024
Open Graph
since Sep 2022
Prism
since Apr 2025
RSS
since Aug 2024
Webpack
since Jul 2021
PaaS
Amazon Web Services
since Aug 2022
Vercel
since Jul 2021
Page builders
Performance
Google Cloud Trace
since Jun 2026
Priority Hints
since Apr 2025
Programming languages
Node.js
since Jul 2021
Security
Cloudflare Bot Management
since Mar 2025
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since May 2021
UI frameworks
Radix UI
since Oct 2023
Video players
YouTube
since Aug 2024
Web servers
Nginx
since May 2021
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
Widgets
Twitter
since Aug 2024
Audience
- 82% desktop
- 18% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.31 / 10 · ranked #433,419 of all domains
50 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 3.4 MB · 48 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| careers.leaner.co.jp | 22 |
| leaner.co.jp | 18 |
| developer.leaner.co.jp | 15 |
Full technology history →
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Recent changes
- detected Google Cloud Trace Jun 2026
- detected Amazon CloudFront Apr 2026
- detected HubSpot Mar 2026