What powers great-blue.jp?
Last seen Jul 2026 · 9 technologies across 8 categories
Advertising
Google AdSense
since Jan 2019
Analytics
CDN
Cloudflare
since Sep 2023
Font scripts
Google Font API
since Nov 2025
Programming languages
Adobe Flash
since Sep 2021
Security
Cloudflare Bot Management
since Sep 2023
reCAPTCHA
since Jul 2022
Tag managers
Google Tag Manager
since Sep 2021
Web servers
Apache HTTP Server
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% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.55 / 10 · ranked #6,112,646 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.3 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on GMOOSK-NET GMO Internet Group, Inc. (160.251.151.151)
- DNS: xdomain.ne.jp
- Email: no MX record returned
- Email security: SPF (soft fail)
- Common Crawl link graph: rank 63,320,350, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped HSTS Nov 2025