What powers tsukumi-irukajima.jp?
Last seen Sep 2026 · 13 technologies across 10 categories
CDN
Google Hosted Libraries
since Jun 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
HSTS
since Jun 2023
UI frameworks
Video players
YouTube
since Apr 2019
Web servers
Apache HTTP Server
since Apr 2019
Widgets
FlexSlider
since Apr 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 88% phone
- 12% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.38 / 10 · ranked #1,034,311 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 9.4 MB · 79 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (219.94.241.150)
- Email: secure-cms.net
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,384,448, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| tsukumi-irukajima.jp | 13 |
| www.tsukumi-irukajima.jp | 9 |