What powers chukan.co.jp?
Last seen Aug 2026 · 17 technologies across 13 categories
Advertising
Tapad
since Aug 2022
Analytics
Google Analytics
since Aug 2022
CMS
WordPress
since Aug 2022
Databases
MySQL
since Aug 2022
Font scripts
Twitter Emoji (Twemoji)
since Aug 2022
JavaScript libraries
Marketing automation
Satori
since Dec 2024
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Programming languages
PHP
since Aug 2022
Security
reCAPTCHA
since Aug 2022
Tag managers
Google Tag Manager
since Aug 2022
Web servers
Apache HTTP Server
since Aug 2022
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.88 / 10 · ranked #3,944,405 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 4.9 MB · 91 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
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Recent changes
- dropped Tapad Nov 2025