What powers 
esms.vn?
Last seen Sep 2026 · 28 technologies across 13 categories
Analytics
Authentication
CDN
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Operating systems
Security
Tag managers
UI frameworks
Web frameworks
Web servers
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
AI Crawlers
No AI crawlers blocked
Audience
- 76% desktop
- 24% phone
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.59 / 10 · ranked #387,589 of all domains
40 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 2.3 MB · 46 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on CLOUDVIET-AS-VN Cloud Viet Technology Company Limited (103.29.26.39)
- DNS: Cloudflare DNS
- Email: esms.vn
- Email security: SPF (soft fail), DMARC quarantine, CAA
- SSL: GlobalSign, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 1,203,763, 17 hosts
- Verified with: GlobalSign, HubSpot, Postman
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| account.esms.vn | 17 |
| esms.vn | 15 |
| www.esms.vn | 15 |
| thp.esms.vn | 14 |
| adsms.esms.vn | 7 |
| rest.esms.vn | 3 |
Full technology history →
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Recent changes
- dropped MathJax May 2026