What powers 
vuphong.vn?
Last seen Sep 2026 · 36 technologies across 20 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating Systems
Performance
Programming languages
SEO
Tag managers
UI frameworks
Web Server Extensions
Web servers
Webmail
Widgets
WordPress plugins
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 not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 61% desktop
- 39% phone
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.09 / 10 · ranked #512,756 of all domains
87 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Vietnamese
- Weight: 14.9 MB · 202 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Vũ Phong Energy Group JSC: Solar & Wind Power
- Profiles: Facebook, X, Instagram, LinkedIn, Pinterest, YouTube
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on VNPT-AS-VN VIETNAM POSTS AND TELECOMMUNICATIONS GROUP (14.225.238.222)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 3,055,572, 11 hosts
- Verified with: Google, Microsoft 365, OpenAI
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| vuphong.vn | 25 |
| dienmattroidoclap.vuphong.vn | 16 |
| www.vuphong.vn | 15 |
| dienmattroihoaluoi.vuphong.vn | 12 |
Full technology history →
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Recent changes
- dropped Tailwind CSS Aug 2026
- detected Tailwind CSS Jan 2026