What powers 
gr1.jp?
Last seen Sep 2026 · 16 technologies across 11 categories
CDN
Google Hosted Libraries
since Feb 2022
CMS
Databases
MySQL
since Jul 2019
Font scripts
JavaScript frameworks
GSAP
since Dec 2022
JavaScript libraries
Miscellaneous
Programming languages
Web servers
Apache HTTP Server
since Jul 2019
Webmail
Apple iCloud Mail
since May 2024
Google Workspace
since Aug 2022
WordPress plugins
WP-PageNavi
since Feb 2022
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
AI Crawlers
No AI crawlers blocked
Audience
- 69% desktop
- 31% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.41 / 10 · ranked #997,783 of all domains
28 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0.95 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 6.6 MB · 86 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on GMO Internet (157.7.189.139)
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: GlobalSign, RSA 2048, expires May 2027
- Common Crawl link graph: rank 10,325,807
- Verified with: Apple Business, Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted