What powers s-libera.com?
Last seen Sep 2026 · 12 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
CDN
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Tag managers
Google Tag Manager
since Jan 2019
Video players
YouTube
since May 2024
Web servers
Nginx
since Jan 2019
Widgets
SnapWidget
since Feb 2022
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.51 / 10 · ranked #6,436,997 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 8.8 MB · 200 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (153.120.113.249)
- DNS: Sakura Internet
- Email: s-libera.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 12,301,443
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted