What powers retpc.jp?
Last seen Jun 2026 · 39 technologies across 20 categories
Advertising
Twitter Ads
since Jul 2023
Analytics
Google Analytics
since Jun 2018
Authentication
Facebook Login
since Jul 2023
Caching
Varnish
since Jul 2023
CDN
Amazon CloudFront
since May 2026
cdnjs
since Aug 2022
Cloudflare
since Aug 2022
Google Hosted Libraries
since Aug 2022
jsDelivr
since Oct 2024
Unpkg
since Jul 2021
CMS
Hatena Blog
since Jul 2023
Databases
MySQL
since Jun 2018
Issue trackers
Sentry
since Jul 2023
JavaScript libraries
Marketing automation
BowNow
since Oct 2024
Miscellaneous
Open Graph
since Jul 2023
RSS
since Jul 2023
PaaS
Amazon Web Services
since Jul 2023
Programming languages
PHP
since Jun 2018
Security
Cloudflare Bot Management
since Mar 2025
Tag managers
Google Tag Manager
since Apr 2018
Video players
YouTube
since Oct 2024
Web servers
Nginx
since Jul 2021
Webmail
Apple iCloud Mail
since May 2024
Microsoft 365
since Aug 2022
Widgets
Twitter
since Jul 2023
WordPress plugins
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 71% desktop
- 29% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.60 / 10 · ranked #69,542 of all domains
267 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 3.8 MB · 139 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.retpc.jp | 24 |
| yaf21.retpc.jp | 18 |
| consul-e.retpc.jp | 10 |
Full technology history →
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Recent changes
- dropped Google Ads Dec 2025
- dropped Google Ads Conversion Tracking Dec 2025
- dropped Cloudflare Bot Management Nov 2025
- dropped Moment.js Aug 2025