What powers 
sensa.jp?
Last seen Oct 2026 · 6 technologies across 6 categories
Analytics
Google Analytics
since Feb 2020
CDN
jsDelivr
since Dec 2025
JavaScript libraries
Swiper
since Dec 2025
Miscellaneous
Open Graph
since Sep 2022
Web servers
Apache HTTP Server
since Jun 2020
Widgets
SnapWidget
since Feb 2022
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
- 56% phone
- 44% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.07 / 10 · ranked #522,891 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- Weight: 7.2 MB · 115 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on IDCF - IDC Frontier Inc. (210.140.41.2)
- DNS: directorz.jp
- Email: sensa.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 1,099,585
- Verified with: Google
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
- dropped Google Font API Jan 2026
- dropped jQuery Jan 2026
- dropped jQuery CDN Jan 2026
- detected jsDelivr Dec 2025
- detected Swiper Dec 2025