What powers jsts.sc?
Last seen Aug 2026 · 22 technologies across 15 categories
Analytics
Google Analytics
since Sep 2022
CMS
Databases
MySQL
since Sep 2022
Font scripts
Google Font API
since Jan 2024
Twitter Emoji (Twemoji)
since Sep 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Sep 2022
Page builders
WordPress Block Editor
since Aug 2024
Performance
Priority Hints
since Aug 2024
Programming languages
PHP
since Sep 2022
Security
Cloudflare Turnstile
since Aug 2026
reCAPTCHA
since Sep 2022
Web servers
Nginx
since Sep 2022
Webmail
Google Workspace
since Sep 2022
WordPress plugins
WordPress themes
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% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.15 / 10 · ranked #3,214,749 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| CLS | 0 |
| TTFB | 2700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (112.78.216.173)
- DNS: Amazon Route 53
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 8,978,437
- Verified with: Brevo, Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted