What powers jobcolle.co.jp?
Last seen Aug 2026 · 20 technologies across 12 categories
Analytics
Google Analytics
since Nov 2023
CMS
Databases
MySQL
since Oct 2022
Font scripts
Twitter Emoji (Twemoji)
since Oct 2022
JavaScript frameworks
JavaScript libraries
Slick
since Oct 2022
Underscore.js
since Aug 2026
Miscellaneous
Open Graph
since Oct 2022
PWA
since Dec 2025
Performance
Priority Hints
since Nov 2023
Programming languages
Tag managers
Google Tag Manager
since Oct 2022
Web servers
Nginx
since Oct 2022
WordPress plugins
Popup Maker
since Mar 2023
WP-PageNavi
since Oct 2022
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
- 59% phone
- 41% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.09 / 10 · ranked #3,354,212 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.1 MB · 64 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
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