What powers 
masu.com.vn?
Last seen Aug 2026 · 13 technologies across 8 categories
Analytics
Authentication
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Tag managers
Web servers
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- FacebookBot Allowed
The other 32 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
- Sep 2026 facebookbot added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 26% desktop
Vietnam
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.77 / 10 · ranked #269,108 of all domains
77 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 100 ms |
| CLS | 0.4 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Vietnamese
- Weight: 3.7 MB · 201 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SUPERDATA-AS-VN SUPERDATA- (112.213.89.89)
- DNS: dotvndns.vn
- Email: masu.com.vn
- Email security: SPF (soft fail), no DMARC record
- SSL: DigiCert, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 111,608, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection