What powers vduh.org?
Last seen Sep 2026 · 20 technologies across 11 categories
CDN
jsDelivr
since Sep 2025
Font scripts
Font Awesome
since Jul 2024
Google Font API
since Jul 2024
JavaScript frameworks
React
since Aug 2025
JavaScript graphics
JavaScript libraries
Operating systems
Ubuntu
since Jul 2024
Programming languages
UI frameworks
Ant Design
since Aug 2025
Bootstrap
since Jul 2024
Web frameworks
Microsoft ASP.NET
since Jan 2024
Web servers
Webmail
Zimbra
since Aug 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 62% desktop
- 38% phone
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 2.6 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Vietnamese
- Weight: 0.6 MB · 31 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on VNPT-AS-VN VNPT Corp (103.56.158.118)
- Email: vduh.org
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Sectigo, RSA 2048, expires Dec 2026
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ketqua2.vduh.org | 10 |
| ketqua.vduh.org | 9 |
| rad.vduh.org | 8 |
| tracuuketqua.vduh.org | 5 |
| mail.vduh.org | 3 |
| pacs.vduh.org | 1 |
| webmail.vduh.org | 1 |