What powers 3rd-class.jp?
Last seen Mar 2026 · 18 technologies across 14 categories
Advertising
Twitter Ads
since Jun 2021
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since Jun 2021
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Jan 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Gravatar
since Jan 2019
Open Graph
since Oct 2022
Programming languages
PHP
since Jan 2019
Video players
YouTube
since Jan 2019
Web servers
Nginx
since Jan 2019
Widgets
Twitter
since Jan 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.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
1.78 / 10 · ranked #4,488,049 of all domains
6 referring domains · OpenPageRank
Infrastructure
- Hosted on Sakura Internet (49.212.180.103)
- DNS: Sakura Internet
- Email: 3rd-class.jp
- Email security: no SPF record, no DMARC record
- Common Crawl link graph: rank 31,749,092
DNS records as swept Oct 2026. How the web is hosted