What powers 
this.edu.cn?
Last seen Oct 2026 · 14 technologies across 8 categories
CMS
Databases
MySQL
since Aug 2022
Font scripts
Font Awesome
since Aug 2022
Google Font API
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Feb 2023
Programming languages
Video players
Webmail
Apple iCloud Mail
since Jun 2026
Microsoft 365
since Feb 2023
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
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.12 / 10 · ranked #493,760 of all domains
115 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.7 s |
| INP | 50 ms |
| CLS | 0.4 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Chinese (China)
- Weight: 11.7 MB · 78 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Tsinghua International School
- Founded: 2009
- Country: People's Republic of China
From Wikidata (CC0).
Infrastructure
- Hosted on CHINA169-BJ China Unicom Beijing Province Network (114.242.187.19)
- DNS: this.edu.cn
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 186,793, 3 hosts
- Verified with: Apple Business
DNS records as swept Oct 2026, certificate as seen Nov 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Apple iCloud Mail Jun 2026