What powers river.go.jp?
Last seen Jun 2026 · 30 technologies across 15 categories
Analytics
CDN
Editors
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
PaaS
Programming languages
Security
UI frameworks
Web frameworks
Web servers
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| river gif | #83 | 1 |
| saitama pajamas | #43 | 0 |
| m l i t japan | #40 | 0 |
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
- 78% phone
- 20% desktop
- 2% tablet
Japan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.71 / 10 · ranked #12,973 of all domains
1,054 referring domains · OpenPageRank
Search traffic
1 est. monthly organic visits (US)
3 keywords in Google's top 30
Core Web Vitals
| LCP | 2.4 s |
| INP | 250 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.1 MB · 4 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.river.go.jp | 15 |
| c-sensor.river.go.jp | 7 |
| city.river.go.jp | 6 |
| frl.river.go.jp | 3 |
| s.river.go.jp | 3 |
| www5.river.go.jp | 3 |
| k.river.go.jp | 2 |
| c.river.go.jp | 1 |
| frlg.river.go.jp | 1 |
| i.river.go.jp | 1 |
| jizen.river.go.jp | 1 |
| www.i.river.go.jp | 1 |
| www1.river.go.jp | 1 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon CloudFront Jun 2026
- detected Amazon Web Services Jun 2026
- dropped Akamai mPulse May 2026
- dropped Boomerang May 2026
- dropped Facebook Login Mar 2026
- dropped Leaflet Mar 2026
- dropped Livefyre Mar 2026
- dropped Snowplow Analytics Mar 2026
- dropped TurfJS Mar 2026
- detected Tailwind CSS Feb 2026
- dropped Google Tag Manager Jan 2026
- detected HSTS Aug 2025