What powers lin.ac?
Last seen Oct 2026 · 9 technologies across 8 categories
Analytics
Google Analytics
since Jul 2026
CDN
Amazon CloudFront
since Jul 2026
Amazon S3
since Jul 2026
JavaScript frameworks
Vue.js
since Jul 2026
PaaS
Amazon Web Services
since Apr 2025
RUM
Datadog
since Jul 2026
Security
HSTS
since Sep 2022
Web frameworks
Ionic
since Jul 2026
Web servers
Apache HTTP Server
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 99% phone
- 1% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.08 / 10 · ranked #11,324,014 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on InfoSphere - NTT PC Communications, Inc. (203.138.241.133)
- DNS: Amazon Route 53
- Email: lin.ac
- Email security: SPF (soft fail), DMARC monitor only
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 31,970,243, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| app.chiyodagrp.app.lin.ac | 7 |
| www2.lin.ac | 2 |
| www3.lin.ac | 2 |
| www4.lin.ac | 2 |
| www6.lin.ac | 1 |