What powers viettesol.org.vn?
Last seen Oct 2026 · 35 technologies across 18 categories
Authentication
Facebook Login
since Aug 2022
CDN
cdnjs
since Mar 2023
Cloudflare
since Mar 2023
CMS
Joomla
since Aug 2022
Google Workspace
since Aug 2022
Mailgun
since Aug 2022
Font scripts
Google Font API
since Aug 2022
JavaScript frameworks
JavaScript libraries
Live chat
Facebook Chat Plugin
since Aug 2022
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Prism
since Apr 2025
RSS
since Sep 2023
Webpack
since Apr 2025
Operating systems
Ubuntu
since Apr 2025
Programming languages
PHP
since Aug 2022
Rich text editors
Search engines
Awesomplete
since Aug 2022
Security
HSTS
since Dec 2023
UI frameworks
Animate.css
since Aug 2022
Bootstrap
since Aug 2022
Video players
YouTube
since Sep 2025
Web frameworks
Helix Ultimate
since Aug 2022
Web servers
LiteSpeed
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.72 / 10 · ranked #4,846,032 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.6 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- Weight: 8.3 MB · 53 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Industry: Arts and entertainment (declares
Event)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on VNPT-AS-VN VIETNAM POSTS AND TELECOMMUNICATIONS GROUP (103.75.184.19)
- DNS: inet.vn
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,167,816, 4 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.viettesol.org.vn | 21 |
| viettesol.org.vn | 19 |
| convention.viettesol.org.vn | 17 |