What powers kaisei-group.co.jp?
Last seen Jun 2026 · 39 technologies across 20 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| what is dog in korean | #99 | 0 |
| snsns slang | #68 | 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
- 89% phone
- 10% desktop
- 1% tablet
Japan
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.20 / 10 · ranked #229,445 of all domains
91 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
2 keywords in Google's top 30
Core Web Vitals
| LCP | 1.6 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.6 MB · 47 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.kls.kaisei-group.co.jp | 27 |
| www.kaisei-group.co.jp | 19 |
| hoiku.kaisei-group.co.jp | 7 |
| nihongo.kaisei-group.co.jp | 7 |
| fc.kaisei-group.co.jp | 6 |
| onlinetest.kaisei-group.co.jp | 5 |
| el.kaisei-group.co.jp | 4 |
| naruka.kaisei-group.co.jp | 4 |
Full technology history →
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Recent changes
- dropped Bootstrap Mar 2026
- dropped Dart Mar 2026
- dropped Flutter Mar 2026
- dropped PWA Mar 2026
- detected Bootstrap Jan 2026
- detected Dart Jan 2026
- detected Flutter Jan 2026
- detected PWA Jan 2026
- dropped cdnjs Oct 2025
- dropped Cloudflare Oct 2025
- detected Twitter Emoji (Twemoji) Sep 2025
- detected VWO Sep 2025