What powers vanconghung.com?
Last seen Oct 2026 · 8 technologies across 6 categories
Advertising
Analytics
Blogs
CDN
Miscellaneous
Programming languages
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 found
- ai.txt not found
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 61% phone
- 39% desktop
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.69 / 10 · ranked #19,690,272 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Vietnamese
- CDN: Cloudflare
- Weight: 0.2 MB · 37 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.15.74, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 2,806,634
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Java Apr 2026
- dropped OpenGSE Apr 2026
- detected Cloudflare Mar 2026
- detected Cloudflare Browser Insights Mar 2026
- detected HTTP/3 Mar 2026