What powers updf.cn?
Last seen Oct 2026 · 21 technologies across 16 categories
A/B Testing
Advertising
Analytics
CDN
CMS
Databases
Ecommerce
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Programming languages
Security
SEO
Web servers
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 96% desktop
- 4% phone
United States
Hong Kong SAR China
China
Japan
Singapore
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.39 / 10 · ranked #1,012,433 of all domains
28 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Chinese
- CDN: Alibaba
- Weight: 8.8 MB · 127 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on CHINAMOBILE-CN China Mobile Communications Group Co., Ltd. (183.192.167.44)
- Email: no MX record returned
- Email security: DMARC monitor only
- SSL: DigiCert, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 6,748,282, 10 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.updf.cn | 20 |
| ai.updf.cn | 3 |
Full technology history →
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Recent changes
- dropped Twenty Twenty-One Sep 2026
- dropped WooCommerce Sep 2026
- detected Priority Hints Jul 2026
- dropped YouTube Jan 2026