What powers 
jsecurity.co.jp?
Last seen Aug 2026 · 17 technologies across 12 categories
Advertising
Microsoft Advertising
since May 2023
Yahoo Advertising
since Apr 2022
Analytics
Google Analytics
since Jan 2019
Microsoft Clarity
since May 2023
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Dec 2022
Operating systems
CentOS
since Jan 2019
Programming languages
PHP
since Jan 2019
Tag managers
Google Tag Manager
since Aug 2019
Web frameworks
CodeIgniter
since Sep 2021
Web server extensions
Web servers
Webmail
Google Workspace
since May 2023
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
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.56 / 10 · ranked #837,126 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on GMO Internet (163.44.165.119)
- DNS: Muumuu Domain
- 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 10,748,491, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| jsecurity.co.jp | 17 |
| www.jsecurity.co.jp | 17 |