Domain report
ack75.com
ack75.com ranks in the top 0.25% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.25%
- Hosts observed
- 2
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://ack75.com/ answered with HTTP 200.
DNS records
- A
- 103.1.236.125
- AAAA
- No records found.
- MX
- No records found.
- NS
- ns2.dotvndns.vn.
- nsbak.dotvndns.com.
- ns1.dotvndns.vn.
Live preview
This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.
Since ack75.com can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.
Domain registration (WHOIS / RDAP)
RDAP lookup failed (HTTP 429).
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html
- Cache-Control
- Not sent
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- default-src * data: blob: 'unsafe-inline' 'unsafe-eval'; script-src * data: blob: 'unsafe-inline' 'unsafe-eval'; worker-src * data: blob: 'unsafe-inline' 'unsafe-eval'; connect-src * data: blob:; img-src * data: blob:; style-src * 'unsafe-inline';
- Strict-Transport-Security
- max-age=31536000; includeSubDomains; preload
- X-Frame-Options
- SAMEORIGIN
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- strict-origin-when-cross-origin
- Permissions-Policy
- geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()
Redirect chain
- 1.
http://ack75.com/HTTP 301→ https://www.ack75.com/
- 2.
https://www.ack75.com/HTTP 200
Meta tags
- Title
- Hội Cựu Sinh Viên Lớp ACK75, Đại Học Bách Khoa
- Description
- Not set
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Not set
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- Not set
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
ack75.com has no robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.