What powers nsf.org.cn?
Last seen Aug 2026 · 20 technologies across 12 categories
Analytics
CDN
Development
Issue trackers
JavaScript frameworks
Miscellaneous
Performance
Programming languages
Security
Tag managers
UI frameworks
Webmail
AI Crawlers
Blocks 3 of 33 AI crawlers we track by name in its robots.txt. Checked Aug 2026.
Training crawlers
- Google-Extended Blocked
- GPTBot Blocked
Search and AI assistants
- PerplexityBot Blocked
The other 30 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
3 of 33 AI crawlers blocked
Audience
- 53% desktop
- 47% phone
Taiwan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.44 / 10 · ranked #7,067,442 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 5.3 s |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Chinese
- CDN: Cloudflare
- Weight: 2.7 MB · 74 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Turbopack Aug 2026
- detected Cloudflare Jul 2026
- detected Google Analytics Jul 2026
- detected Google Tag Manager Jul 2026
- detected Headless UI Jul 2026
- detected HSTS Jul 2026
- detected HTTP/3 Jul 2026
- detected Marker Jul 2026
- detected Microsoft 365 Jul 2026
- detected Naver Analytics Jul 2026
- detected Next.js Jul 2026
- detected Next.js App Router Jul 2026
- detected Node.js Jul 2026
- detected Open Graph Jul 2026
- detected Priority Hints Jul 2026
- detected PWA Jul 2026
- detected Radix UI Jul 2026
- detected React Jul 2026
- detected Tailwind CSS Jul 2026
- detected Webpack Jul 2026
- detected Priority Hints Jun 2026
- dropped reCAPTCHA Jun 2026
- dropped Alpine.js May 2026
- dropped Azure May 2026
- dropped Azure Front Door May 2026
- dropped core-js May 2026
- detected HTTP/3 May 2026
- dropped RSS May 2026
- dropped Amazon Web Services Apr 2026
- detected Google Analytics Apr 2026
- detected Google Tag Manager Apr 2026
- detected Headless UI Apr 2026
- detected HSTS Apr 2026
- dropped Microsoft HTTPAPI Apr 2026
- detected Naver Analytics Apr 2026
- detected Next.js Apr 2026
- detected Next.js App Router Apr 2026
- detected Node.js Apr 2026
- detected Radix UI Apr 2026
- detected React Apr 2026
- detected reCAPTCHA Apr 2026
- detected Tailwind CSS Apr 2026
- detected Webpack Apr 2026