What powers 
kosodate-sc.jp?
Last seen Oct 2026 · 15 technologies across 11 categories
CMS
Databases
MySQL
since Jul 2023
Font scripts
Google Font API
since Jul 2023
Twitter Emoji (Twemoji)
since May 2024
Hosting
Sakura Internet
since Jul 2023
JavaScript libraries
Swiper
since Jul 2023
Miscellaneous
RSS
since Jul 2023
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Apr 2026
Programming languages
PHP
since Jul 2023
Web servers
Nginx
since Jul 2023
WordPress themes
Lightning
since Jul 2023
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 60% desktop
- 40% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.17 / 10 · ranked #470,866 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.6 MB · 66 requests
- WordPress theme: lightning (child: lightning-child) · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (49.212.235.199)
- DNS: Sakura Internet
- Email: kosodate-sc.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,648,747
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected core-js Oct 2026
- detected Priority Hints Apr 2026
- detected Twitter Emoji (Twemoji) Dec 2025