DNS Record Lookup

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

mcmaster.com

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

mcmaster.com runs on AS22034, with email via Proofpoint.

Hosting network
AS22034AS22034
Managed DNS
Self-hosted / other
Email
Proofpoint
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 305 other sites on AS22034.

Recently changed networks: AS7018 → AS22034 (as of Nov 13, 2026)

DNS Records for mcmaster.com

HostnameTypeTTLPriorityContent
mcmaster.comA0209.64.25.149
mcmaster.comSOA60ns2.mcmaster.com hostmaster.mcmaster.com 1783 60 900 86400 60
mcmaster.comNS0ns2.mcmaster.com
mcmaster.comNS0ns4.mcmaster.com
mcmaster.comNS0ns1.mcmaster.com
mcmaster.comNS0ns3.mcmaster.com
mcmaster.comMX0mx0a-00570c01.pphosted.com
mcmaster.comMX0mx0b-00570c01.pphosted.com
mcmaster.comCAA00 issue digicert.com
mcmaster.comTXT0MS=ms15831590
mcmaster.comTXT0miro-verification=f4e0eeb30859fc7ba1f97fa4226ca3e283c9c863
mcmaster.comTXT0_kxi5f2699317hnmzrd20oc6kknc7myl
mcmaster.comTXT0v=spf1 ip4:209.64.25.245 ip4:209.64.25.246 ip4:209.64.25.247 ip4:209.64.25.248 ip4:12.203.197.22 ip4:12.203.197.23 ip4:12.203.197.24 ip4:12.203.197.25 ip4:44.203.112.2 include:_spfprod.ngpvan.com ~all
mcmaster.comTXT0atlassian-domain-verification=GNSv9wabNT5xNCz0qSb/2LU6iZpUAc1Za56wsU1hJhgLeSTuIVYcajabmy9s1Bbf
mcmaster.comTXT0apple-domain-verification=TTiWjZN11fZHZBQi
mcmaster.comTXT0Docusign=fddb2627-4a16-4d5e-82e7-258220484b8d
mcmaster.comTXT0anthropic-domain-verification-18mq8v=LcuVZynEW19BWYIbz7j3ntQMp
mcmaster.comTXT0twilio-domain-verification=e479f5ca90dfdbf8f06152e28adbb4f8
mcmaster.comTXT0notion-domain-verification=hk4fClpkyNxaDpYRpNMju4LWhDtHC9IfPqji2fvE7LU
mcmaster.comTXT0MS=E150D2B549DCBD0EB9D652EE4B78C88D8E94B1F0
mcmaster.comTXT0google-site-verification=yEN1-3qH9KxX3WSAoE2HiMMy4H9TTJoMcGUY8i7hEpI
mcmaster.comTXT0_00e3btp7pnzoy6pqegfm7fsjjp0x9uw
mcmaster.comTXT0docusign=e7d2700e-0abc-46de-9ae4-ec25ed45fdb7
www.mcmaster.comCNAME0san.mcmaster.com.edgekey.net
www.mcmaster.comA0184.27.10.98

Get alerted the moment mcmaster.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch mcmaster.com continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

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

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.

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 mcmaster.com

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