What powers 3esys.jp?
Last seen Oct 2026 · 30 technologies across 15 categories
Analytics
Google Analytics
since Jul 2019
CDN
Font scripts
Google Font API
since Dec 2022
JavaScript frameworks
JavaScript libraries
Load balancers
Amazon ELB
since Feb 2025
Miscellaneous
PaaS
Amazon Web Services
since Jul 2019
Programming languages
Security
HSTS
since Aug 2023
Tag managers
Google Tag Manager
since May 2024
UI frameworks
Video players
VideoJS
since Mar 2023
Web frameworks
Ruby on Rails
since Jul 2021
Web servers
Apache HTTP Server
since Jul 2019
Nginx
since Jul 2021
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Nov 2026 *: Blocked (was Restricted)
- Oct 2026 *: Restricted (was Blocked)
- Oct 2026 *: Blocked (was Restricted)
- Oct 2026 *: Restricted (was Blocked)
- Sep 2026 *: Blocked (was Restricted)
- Sep 2026 *: Restricted (was Blocked)
AI Crawlers
All crawlers blocked
Audience
- 57% desktop
- 41% phone
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.05 / 10 · ranked #241,935 of all domains
76 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Weight: 0.1 MB · 5 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- DNS: Amazon Route 53
- Email: Amazon SES / WorkMail
- Email security: no SPF record, no DMARC record
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Mar 2027
- Common Crawl link graph: rank 8,255,788, 20 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| cocokara-navi.3esys.jp | 12 |
| giotrif.3esys.jp | 11 |
| neuromystar.3esys.jp | 11 |
| 3elive-inquiry.3esys.jp | 10 |
| copd.3esys.jp | 6 |
| kissei-ai-detail.3esys.jp | 6 |
| live2.3esys.jp | 4 |
| live5.3esys.jp | 4 |
| jart.3esys.jp | 3 |
| nbi.3esys.jp | 3 |
| jj-live.3esys.jp | 2 |
| jj-register.3esys.jp | 2 |
Full technology history →
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Recent changes
- dropped Font Awesome May 2026