What powers ton21.ne.jp?
Last seen Oct 2026 · 26 technologies across 17 categories
Advertising
Twitter Ads
since Dec 2025
Analytics
Google Analytics
since Jun 2020
CDN
cdnjs
since Jan 2024
Cloudflare
since Jan 2024
Google Hosted Libraries
since Jan 2024
jsDelivr
since Jan 2024
CMS
WordPress
since Jan 2024
Databases
MySQL
since Jan 2024
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Jan 2024
Operating systems
CentOS
since Jun 2020
Programming languages
PHP
since Mar 2020
TypeScript
since Dec 2022
Security
Cloudflare Bot Management
since May 2026
HSTS
since Sep 2022
UI frameworks
Web frameworks
CakePHP
since May 2022
Web server extensions
Web servers
Nginx
since May 2022
Widgets
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
- 90% phone
- 10% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.13 / 10 · ranked #490,996 of all domains
54 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 0.6 MB · 59 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Tsurugashiritsu Library
- Country: Japan
From Wikidata (CC0).
Infrastructure
- DNS: viplt.ad.jp
- Email: ton21.ne.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: DigiCert, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 789,166, 5 hosts
- Verified with: Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| lib.ton21.ne.jp | 19 |
| edu.ton21.ne.jp | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Twitter Jul 2026
- detected Cloudflare Bot Management May 2026
- detected Twitter Dec 2025
- detected Twitter Ads Dec 2025