What powers concha.jp?
Last seen Sep 2026 · 7 technologies across 7 categories
CDN
Google Hosted Libraries
since Feb 2022
Editors
DreamWeaver
since Jan 2019
Hosting panels
Plesk
since Jan 2019
JavaScript libraries
Miscellaneous
SWFObject
since Jan 2019
Programming languages
Adobe Flash
since Jul 2021
Web servers
Nginx
since Jan 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
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.44 / 10 · ranked #7,092,166 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.4 MB · 48 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (210.152.151.60)
- Email: concha.jp
- Email security: SPF (hard fail), no DMARC record
- Common Crawl link graph: rank 11,434,734, 2 hosts
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| concha.jp | 7 |
| www.concha.jp | 7 |