DNS Record Lookup

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

listserv.ca

DNS Records

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Hosting & Network

listserv.ca runs on AS577, with email configured.

Hosting network
AS577AS577
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 3,708 other sites on AS577.

Recently changed networks: AS855 → AS577 (as of Oct 12, 2026)

The apex and www are the same hosting — the apex via A records.

DNS Records for listserv.ca

HostnameTypeTTLPriorityContent
listserv.caMX0email2.korlex.com
listserv.caSOA300h1.korlex.com root.korlex.com 2026072201 3600 900 1209600 300
listserv.caNS0h1.korlex.com
listserv.caNS0h2.korlex.com
listserv.caA0142.134.176.90
www.listserv.caA0142.134.176.90

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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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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