What powers 
mainguyen.vn?
Last seen Aug 2026 · 19 technologies across 13 categories
Analytics
Google Analytics
since Jun 2018
Authentication
Facebook Login
since Feb 2022
Google Sign-in
since Nov 2023
CDN
DigitalOcean Spaces
since May 2023
Font Scripts
Google Font API
since Jan 2016
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Nov 2022
Operating systems
Ubuntu
since Nov 2022
Programming languages
Node.js
since Nov 2022
Rich text editors
Quill
since May 2023
Security
reCAPTCHA
since Sep 2024
Web servers
Webmail
Google Workspace
since Aug 2022
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
- 54% phone
- 46% desktop
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.67 / 10 · ranked #778,279 of all domains
50 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 150 ms |
| CLS | 0.45 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Vietnamese
- Weight: 9.5 MB · 424 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on VIETEL-AS-AP Viettel Group (27.71.232.78)
- DNS: pavietnam.vn
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 8,579,450, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.mainguyen.vn | 15 |
| member.mainguyen.vn | 10 |