DNS Record Lookup

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

Hosting & Network

holborn.ca runs on Cloudflare, with DNS by Cloudflare and email via Microsoft 365.

Hosting network
CloudflareAS13335Cloudflare
Managed DNS
Cloudflare
Email
Microsoft 365
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 4,344,541 other sites on Cloudflare. Stable here since we started watching (Oct 2, 2026).

DNS Records for holborn.ca

HostnameTypeTTLPriorityContent
holborn.caMX0holborn-ca.mail.protection.outlook.com
holborn.caAAAA02606:4700:3037::6815:3812
holborn.caAAAA02606:4700:3030::ac43:aff8
holborn.caA0172.67.175.248
holborn.caA0104.21.56.18
holborn.caSOA1800aldo.ns.cloudflare.com dns.cloudflare.com 2416026564 10000 2400 604800 1800
holborn.caTXT0sophos-domain-verification=f8cc520ee38f74a2373e02d0c791410ab9efa4e5
holborn.caTXT0google-site-verification=z65f1nqOFmWCmvDFdNAPP9PpBmR6HKg8w4rhTlaHQzc
holborn.caTXT0v=spf1 include:spf.protection.outlook.com include:mailgun.org include:spf-westus.emailsignatures365.com -all
holborn.caTXT0sophos-domain-verification=31ee80a20007b977a7693915959ca3902b4560c520f063ed38faf89d649878ed
holborn.caTXT0google-site-verification=pnFwBwgl7jF2huy5VDbRsrLXHShQEYP6Y87GHjQzxz0
holborn.caTXT0google-site-verification=yWrzufT4rfD_43rtXihXGiD7VzFPLzEPlnlPAKkFpdc
holborn.caNS0aldo.ns.cloudflare.com
holborn.caNS0cass.ns.cloudflare.com
www.holborn.caMX0holborn-ca.mail.protection.outlook.com
www.holborn.caNS0aldo.ns.cloudflare.com
www.holborn.caNS0cass.ns.cloudflare.com
www.holborn.caCNAME0holborn.ca
www.holborn.caSOA1800aldo.ns.cloudflare.com dns.cloudflare.com 2416026564 10000 2400 604800 1800
www.holborn.caA0172.105.3.30
www.holborn.caTXT0google-site-verification=yWrzufT4rfD_43rtXihXGiD7VzFPLzEPlnlPAKkFpdc
www.holborn.caTXT0google-site-verification=z65f1nqOFmWCmvDFdNAPP9PpBmR6HKg8w4rhTlaHQzc
www.holborn.caTXT0sophos-domain-verification=f8cc520ee38f74a2373e02d0c791410ab9efa4e5
www.holborn.caTXT0google-site-verification=pnFwBwgl7jF2huy5VDbRsrLXHShQEYP6Y87GHjQzxz0
www.holborn.caTXT0v=spf1 include:spf.protection.outlook.com include:mailgun.org include:spf-westus.emailsignatures365.com -all
www.holborn.caTXT0sophos-domain-verification=31ee80a20007b977a7693915959ca3902b4560c520f063ed38faf89d649878ed

Get alerted the moment holborn.ca's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch holborn.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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Beta

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

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