What powers 
erii.co.jp?
Last seen Jul 2026 · 25 technologies across 14 categories
Analytics
Google Analytics
since Feb 2022
Microsoft Clarity
since Sep 2024
CDN
Google Hosted Libraries
since Feb 2022
CMS
Databases
MySQL
since Feb 2022
Font scripts
Twitter Emoji (Twemoji)
since Feb 2022
Hosting
Xserver
since Sep 2022
JavaScript libraries
Lightbox
since Feb 2022
prettyPhoto
since Feb 2022
Miscellaneous
Performance
Priority Hints
since Jan 2025
Programming languages
PHP
since Feb 2022
Tag managers
Google Tag Manager
since Feb 2022
UI frameworks
Animate.css
since Feb 2022
Web servers
Nginx
since Feb 2022
WordPress plugins
WP-PageNavi
since Feb 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 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
3.48 / 10 · ranked #912,814 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on Xserver (183.181.89.96)
- DNS: Xserver
- Email: erii.co.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 11,301,129, 2 hosts
- Verified with: Amazon Business, Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Twitter Emoji (Twemoji) Jan 2026