What powers jha.or.jp?
Last seen Jun 2026 · 7 technologies across 6 categories
Analytics
Operating systems
UNIX
since Aug 2018
Tag managers
Google Tag Manager
since Jul 2023
Web server extensions
Web servers
Nginx
since Aug 2018
Webmail
Microsoft 365
since Aug 2022
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| jha | #92 | 14 |
| chart corrections | #54 | 1 |
| sailing directions | #30 | 1 |
| navigation charts for sale | #93 | 1 |
| notices to mariners | #32 | 1 |
| japanese charts | #77 | 1 |
| japanese charts | #41 | 1 |
| which change can be made to correct the chart | #68 | 0 |
| w137a | #39 | 0 |
| smbc jp jt | #32 | 0 |
| north-west in japanese | #51 | 0 |
| north west in japanese | #48 | 0 |
| notice to mariners weekly | #44 | 0 |
| notice in japanese | #76 | 0 |
| iso 9001 2000 certification | #34 | 0 |
| japanese index chart | #27 | 0 |
| jp90 | #54 | 0 |
| japan chart | #59 | 0 |
| japan chart | #13 | 0 |
| jp chart | #65 | 0 |
| mariners japan | #39 | 0 |
| mariners in japan | #50 | 0 |
| admiralty notices to mariners weekly | #42 | 0 |
| admiralty notice to mariners weekly | #43 | 0 |
| directions in japan | #92 | 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
- 90% phone
- 7% desktop
- 2% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.28 / 10 · ranked #218,154 of all domains
149 referring domains · OpenPageRank
Search traffic
20 est. monthly organic visits (US)
29 keywords in Google's top 30
Core Web Vitals
| LCP | 0.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.7 MB · 71 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| jha.or.jp | 4 |
| mirc.jha.or.jp | 4 |
| www.jha.or.jp | 4 |
| www.mirc.jha.or.jp | 4 |