What powers classnk.or.jp?
Last seen Jun 2026 · 43 technologies across 22 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| etas | #20 | 260 |
| csms meaning | #8 | 110 |
| panama flag | #72 | 100 |
| panama flag | #72 | 100 |
| continuous synopsis record | #21 | 76 |
| continuous synopsis record | #21 | 76 |
| continuous synopsis record | #79 | 70 |
| continuous synopsis record | #79 | 70 |
| solas | #51 | 57 |
| cargo 2017 | #59 | 38 |
| presidential form | #71 | 38 |
| nk | #92 | 35 |
| biofuel | #72 | 31 |
| bahamas flag | #70 | 29 |
| s'ym | #42 | 25 |
| cool eagle | #6 | 24 |
| ballast definition | #81 | 21 |
| kaiji | #72 | 21 |
| define circ | #83 | 21 |
| euas | #22 | 18 |
| asteris | #47 | 17 |
| eridanus leader | #2 | 15 |
| iacs meaning | #3 | 14 |
| clean and press | #61 | 13 |
| msc/circ 1432 | #1 | 12 |
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
- 72% desktop
- 28% phone
Japan
Philippines
Singapore
Greece
India
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.94 / 10 · ranked #48,707 of all domains
366 referring domains · OpenPageRank
Search traffic
2,400 est. monthly organic visits (US)
2,282 keywords in Google's top 30
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Akamai
- Weight: 5.2 MB · 105 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| academy.classnk.or.jp | 21 |
| sswt-portal.classnk.or.jp | 15 |
| academy-en.classnk.or.jp | 14 |
| www.classnk.or.jp | 13 |
| shift.classnk.or.jp | 11 |
| portal.classnk.or.jp | 5 |
Full technology history →
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Recent changes
- dropped Popper Apr 2026
- dropped Tippy.js Apr 2026
- dropped Unpkg Apr 2026
- detected FancyBox Mar 2026
- detected Google Hosted Libraries Mar 2026
- detected jQuery CDN Mar 2026
- detected Muuri Mar 2026
- detected Swiper Mar 2026
- dropped Java Sep 2025
- dropped Lodash Sep 2025
- dropped Bootstrap Aug 2025
- dropped jQuery CDN Aug 2025
- dropped Slick Aug 2025