DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
cao.ca runs on AS16438, with email via Microsoft 365.
- Hosting network
- AS16438AS16438
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 432 other sites on AS16438. Stable here since we started watching (Aug 19, 2026).
DNS Records for cao.ca
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cao.ca | A | 0 | 199.247.203.226 | |
| cao.ca | NS | 0 | ns-ny-1.webdomaine.ca | |
| cao.ca | NS | 0 | ns-tor-1.webdomaine.ca | |
| cao.ca | NS | 0 | ns-mtl-1.webdomaine.ca | |
| cao.ca | NS | 0 | ns-mtl-2.webdomaine.ca | |
| cao.ca | MX | 0 | 10 | cao-ca.mail.protection.outlook.com |
| cao.ca | SOA | 3600 | ns-mtl-1.webdomaine.ca dns-admin.webdomaine.ca 20 3600 600 2592000 3600 | |
| cao.ca | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| cao.ca | TXT | 0 | MS=ms67095488 | |
| www.cao.ca | A | 0 | 205.236.155.83 |
Get alerted the moment cao.ca's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch cao.ca 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, DNSSEC, CNAME 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
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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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