What powers ibaraki-challenge.jp?
Last seen Aug 2026 · 8 technologies across 5 categories
Analytics
Google Analytics
since Mar 2022
CDN
Amazon CloudFront
since Jul 2025
Amazon SES
since Jun 2025
JavaScript libraries
scrollreveal
since Jan 2022
Slick
since Jan 2022
PaaS
Amazon Web Services
since Jun 2025
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 56% phone
- 44% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.81 / 10 · ranked #712,194 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 2.8 MB · 102 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (3.168.102.19)
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 15,456,685, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Apache HTTP Server May 2026
- detected Apache HTTP Server Mar 2026
- dropped Apache HTTP Server Jan 2026