What powers gsj.jp?
Last seen Jun 2026 · 17 technologies across 9 categories
Analytics
Matomo Analytics
since Aug 2024
CDN
Amazon CloudFront
since Apr 2018
Amazon S3
since Jun 2018
cdnjs
since Apr 2025
Cloudflare
since Apr 2025
Font scripts
Font Awesome
since Aug 2024
JavaScript frameworks
AngularJS
since Jan 2019
JavaScript libraries
Operating systems
Ubuntu
since Aug 2024
PaaS
Amazon Web Services
since Jan 2019
Security
HSTS
since Aug 2024
Web servers
Apache HTTP Server
since Aug 2024
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| japan geology | #2 | 17 |
| geological map japan | #1 | 15 |
| japan geological map | #1 | 12 |
| geologic map japan | #1 | 12 |
| how japan formed | #5 | 12 |
| japan subduction zone | #2 | 11 |
| what type of boundary is japan | #1 | 9 |
| plate boundaries of japan | #4 | 5 |
| plate boundaries in japan | #4 | 5 |
| japan tectonic plates | #12 | 4 |
| gsj | #12 | 4 |
| aist japan | #8 | 3 |
| nankai trough | #36 | 3 |
| japan geological features | #4 | 3 |
| japan fault lines | #14 | 3 |
| how were the japanese islands formed | #4 | 3 |
| subduction zone boundary | #72 | 2 |
| subduction plate boundary | #27 | 2 |
| pspaint | #11 | 2 |
| japan trench map | #7 | 2 |
| japan geological map | #5 | 2 |
| map of kyushu | #22 | 2 |
| how were the islands of japan formed | #5 | 2 |
| volcanoes in japan | #25 | 1 |
| volcano in japan map | #15 | 1 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 68% desktop
- 31% phone
- 2% tablet
Japan
Indonesia
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.02 / 10 · ranked #43,844 of all domains
440 referring domains · OpenPageRank
Search traffic
170 est. monthly organic visits (US)
276 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 1.0 MB · 68 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| data.gsj.jp | 11 |
| www.gsj.jp | 9 |
| gbank.gsj.jp | 7 |
| tiles.gsj.jp | 4 |
| geohazards-info.gsj.jp | 2 |
| darc.gsj.jp | 1 |