What powers 
vacancy.jp?
Last seen Aug 2026 · 25 technologies across 16 categories
Advertising
Twitter Ads
since Aug 2022
Analytics
Google Analytics
since Jul 2019
Authentication
Facebook Login
since Aug 2022
CDN
Cloudflare
since Mar 2025
CMS
WordPress
since Jul 2019
Databases
MySQL
since Jul 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Oct 2022
RSS
since Dec 2022
Performance
Priority Hints
since Apr 2024
Programming languages
PHP
since Jul 2019
Security
Cloudflare Bot Management
since Mar 2025
Web servers
Nginx
since Jul 2019
Webmail
Google Workspace
since Aug 2022
Widgets
Twitter
since Jul 2019
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 Oct 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Open Page Rank
4.35 / 10 · ranked #426,363 of all domains
40 referring domains · OpenPageRank
Infrastructure
- Hosted on Sakura Internet (49.212.198.23)
- DNS: Sakura Internet
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 9,008,274, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted