What powers sanritsu.co.jp?
Last seen Aug 2026 · 19 technologies across 12 categories
Advertising
Twitter Ads
since Sep 2021
Analytics
Google Analytics
since Apr 2019
CDN
Font scripts
Google Font API
since Apr 2026
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2023
Operating systems
AlmaLinux
since Nov 2023
Security
Cloudflare Bot Management
since Mar 2025
HSTS
since Nov 2023
Web server extensions
Web servers
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
Widgets
Twitter
since Apr 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Aug 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.01 / 10 · ranked #1,577,930 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 5.7 MB · 34 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on GIGAINFRA SoftBank Corp. (61.206.167.128)
- Email: no MX record returned, SPF names Broadcom MessageLabs
- Email security: SPF (hard fail)
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 10,904,435, 4 hosts
- Verified with: Apple Business
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| hts.music.sanritsu.co.jp | 12 |
| music.sanritsu.co.jp | 12 |
| www.sanritsu.co.jp | 6 |
Full technology history →
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Recent changes
- detected Cloudflare Bot Management May 2026
- dropped Facebook Login May 2026
- dropped GSAP May 2026
- dropped Typekit May 2026
- detected Google Font API Apr 2026
- dropped Cloudflare Bot Management Nov 2025