Domain report
ohstem.vn
ohstem.vn ranks in the top 0.18% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 11 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.18%
- Hosts observed
- 11
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://ohstem.vn/ answered with HTTP 200.
Certificate until 2026-11-16C=US, O=Let's Encrypt, CN=YR2
DNS records
- A
- 125.253.113.102
- AAAA
- No records found.
- MX
- 10 mx.zoho.com.
- 50 mx3.zoho.com.
- 20 mx2.zoho.com.
- NS
- ns2.matbao.com.
- ns1.matbao.com.
- AS
- Server in network ODS Joint Stock Company, AS45538 · Vietnam125.253.113.0/24, which holds 125.253.113.102
Live preview
This is a live, sandboxed embed of ohstem.vn — not a copy. What it shows can change any time the site itself does.
Domain registration (WHOIS / RDAP)
No RDAP (WHOIS) data is available for ohstem.vn.
SSL certificate
- Common name
- ohstem.vn
- Issuer
- C=US, O=Let's Encrypt, CN=YR2
- Valid from
- 2026-08-18
- Valid until
- 2026-11-16
Matches ohstem.vn exactly. Source: Certificate Transparency logs (crt.sh).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=UTF-8
- Cache-Control
- Not sent
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- Not sent
- X-Frame-Options
- Not sent
- X-Content-Type-Options
- Not sent
- Referrer-Policy
- Not sent
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://ohstem.vn/HTTP 301→ https://ohstem.vn/
- 2.
https://ohstem.vn/HTTP 200
Meta tags
- Title
- Trang chủ - Thiết bị giáo dục STEM
- Description
- Not set
- Canonical
- https://ohstem.vn/
- Robots
- index, follow, max-snippet:-1, max-video-preview:-1, max-image-preview:large
- Generator
- WordPress 7.1.3
- Open Graph title
- Trang chủ - Thiết bị giáo dục STEM
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- website
- Twitter card
- summary_large_image
- Twitter title
- Trang chủ - Thiết bị giáo dục STEM
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 1
- Disallow rules (other agents)
- 0
Sitemap declared:
https://ohstem.vn/sitemap_index.xml
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- WordPresscms
<meta name="generator"> = "WordPress 7.1.3"
- Google Analyticsanalytics
Found "www.google-analytics.com" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.