DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

cr-systems.ca runs on AS397181, with email via Microsoft 365.

Hosting network
AS397181AS397181
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 767 other sites on AS397181.

Recently changed networks: AS10929 → AS397181 (as of Sep 3, 2026)

The apex and www are the same hosting — the apex via A records, www via a CNAME to cr-systems.ca.

DNS Records for cr-systems.ca

HostnameTypeTTLPriorityContent
cr-systems.caSOA86400ns1.acehosting.ca keith.acewebsites.ca 2026082002 3600 1800 1209600 86400
cr-systems.caNS0ns1.acehosting.ca
cr-systems.caNS0ns2.acehosting.ca
cr-systems.caTXT0Sendinblue-code:a83463cf96b81b43291018a135f1b09f
cr-systems.caTXT0v=spf1 ip4:66.175.212.46 ip4:45.33.67.11 include:spf.protection.outlook.com include:spf.sendinblue.com mx ~all
cr-systems.caTXT0MS=ms45789084
cr-systems.caA068.71.54.174
cr-systems.caMX0crsystems-ca0e.mail.protection.outlook.com
www.cr-systems.caA068.71.54.174
www.cr-systems.caTXT0v=spf1 ip4:66.175.212.46 ip4:45.33.67.11 include:spf.protection.outlook.com include:spf.sendinblue.com mx ~all
www.cr-systems.caTXT0Sendinblue-code:a83463cf96b81b43291018a135f1b09f
www.cr-systems.caTXT0MS=ms45789084
www.cr-systems.caCNAME0cr-systems.ca
www.cr-systems.caSOA86400ns1.acehosting.ca keith.acewebsites.ca 2026082002 3600 1800 1209600 86400
www.cr-systems.caMX0crsystems-ca0e.mail.protection.outlook.com
www.cr-systems.caNS0ns1.acehosting.ca
www.cr-systems.caNS0ns2.acehosting.ca

What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about cr-systems.ca

Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

Get alerted the moment cr-systems.ca's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch cr-systems.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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

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