DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
sjacs.edu.hk is hosted on Google Sites, served over Google, with DNS by Cloudflare and email via Google Workspace.
- Platform
- Google Sites
- Hosting network
- GoogleAS15169Google
- Managed DNS
- Cloudflare
- Google Workspace
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 432,954 other sites on Google. Stable here since we started watching (Oct 27, 2026).
DNS Records for sjacs.edu.hk
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| sjacs.edu.hk | SOA | 1800 | owen.ns.cloudflare.com dns.cloudflare.com 2418117587 10000 2400 604800 1800 | |
| sjacs.edu.hk | NS | 0 | yolanda.ns.cloudflare.com | |
| sjacs.edu.hk | NS | 0 | owen.ns.cloudflare.com | |
| sjacs.edu.hk | TXT | 0 | v=spf1 include:_spf.google.com ~all | |
| sjacs.edu.hk | TXT | 0 | google-site-verification=mqh1T1KqTHJnDW1xems1pajOHGuXtJfsIuCkMmtesMQ | |
| sjacs.edu.hk | TXT | 0 | apple-domain-verification=ap8YsHqb9oPZTWiX | |
| sjacs.edu.hk | TXT | 0 | MS=ms80646959 | |
| sjacs.edu.hk | TXT | 0 | MS=F64704D4C4FCB31E6218711963CB8BC41F67E6BC | |
| sjacs.edu.hk | TXT | 0 | MS=ms66780583 | |
| sjacs.edu.hk | TXT | 0 | google-site-verification=N4mLzI7hkssH6wdgFU_RnKu6RAvdnXIN_jBK8y-T4tI | |
| sjacs.edu.hk | MX | 0 | 5 | alt1.aspmx.l.google.com |
| sjacs.edu.hk | MX | 0 | 10 | alt3.aspmx.l.google.com |
| sjacs.edu.hk | MX | 0 | 1 | aspmx.l.google.com |
| sjacs.edu.hk | MX | 0 | 5 | alt2.aspmx.l.google.com |
| sjacs.edu.hk | MX | 0 | 10 | alt4.aspmx.l.google.com |
| sjacs.edu.hk | A | 0 | 216.239.38.21 | |
| sjacs.edu.hk | A | 0 | 216.239.34.21 | |
| sjacs.edu.hk | A | 0 | 216.239.32.21 | |
| sjacs.edu.hk | A | 0 | 216.239.36.21 | |
| sjacs.edu.hk | CAA | 0 | 0 issuewild letsencrypt.org | |
| sjacs.edu.hk | CAA | 0 | 0 issue comodoca.com | |
| sjacs.edu.hk | CAA | 0 | 0 issue ssl.com | |
| sjacs.edu.hk | CAA | 0 | 0 issuewild pki.goog; cansignhttpexchanges=yes | |
| sjacs.edu.hk | CAA | 0 | 0 issuewild 0 issue \"digicert.com\"\n0 issue \"pki.goog\"\n0 issue \"letsencrypt.org\"\n0 issue \"sectigo.com\" | |
| sjacs.edu.hk | CAA | 0 | 0 issuewild digicert.com; cansignhttpexchanges=yes | |
| sjacs.edu.hk | CAA | 0 | 0 issue pki.goog; cansignhttpexchanges=yes | |
| sjacs.edu.hk | CAA | 0 | 0 issue letsencrypt.org | |
| sjacs.edu.hk | CAA | 0 | 0 issuewild comodoca.com | |
| sjacs.edu.hk | CAA | 0 | 0 issue digicert.com; cansignhttpexchanges=yes | |
| sjacs.edu.hk | CAA | 0 | 0 issuewild ssl.com | |
| www.sjacs.edu.hk | A | 0 | 103.19.27.151 |
Get alerted the moment sjacs.edu.hk's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch sjacs.edu.hk continuously, notifying you the moment anything moves across all three signals:

Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain