What powers 
musubu.in?
Last seen Sep 2026 · 45 technologies across 24 categories
A/B Testing
Advertising
Analytics
Authentication
CDN
CMS
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Live chat
Load balancers
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
Video players
Web servers
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Restricted (was Allowed)
- Sep 2026 *: Allowed (was Restricted)
- Sep 2026 *: Restricted (was Allowed)
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 51% phone
- 49% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.19 / 10 · ranked #230,138 of all domains
103 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese (Japan)
- Weight: 12.5 MB · 160 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Musubuライブラリ
From the homepage's own structured data (Sep 2026).
Infrastructure
- Registered Aug 2019 (7 years) via Gandi SAS, renews Aug 2027
- Hosted on Amazon Web Services (31.43.160.6)
- DNS: Amazon Route 53
- Email: no MX record returned
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 1,973,984, 9 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.musubu.in | 36 |
| app.musubu.in | 24 |
| library.musubu.in | 21 |
| musubu.in | 18 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft Advertising Apr 2026
- dropped Microsoft Advertising Feb 2026