What powers at21.jp?
Last seen Jun 2026 · 48 technologies across 20 categories
Advertising
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CMS
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Font scripts
JavaScript libraries
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Miscellaneous
Performance
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Security
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| at21 | #35 | 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
- 69% desktop
- 31% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.28 / 10 · ranked #214,668 of all domains
69 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
1 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 28.0 MB · 158 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| ohdo.at21.jp | 34 |
| at21.jp | 25 |
| koukyu-jutaku.at21.jp | 24 |
| kimono.at21.jp | 23 |
| shippaishinai-shukatsu.at21.jp | 16 |
| soken.at21.jp | 13 |
Full technology history →
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Recent changes
- detected Vimeo Apr 2026
- detected Twitter Emoji (Twemoji) Dec 2025
- detected Google Call Conversion Tracking Aug 2025
- dropped Moment.js Aug 2025