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um.kalisz.pl

DNS Records

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Hosting & Network

um.kalisz.pl runs on AS21021, with email configured.

Hosting network
AS21021AS21021
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 220 other sites on AS21021. Stable here since we started watching (Nov 13, 2026).

DNS Records for um.kalisz.pl

HostnameTypeTTLPriorityContent
um.kalisz.plA089.231.0.242
um.kalisz.plSOA10800fns1.42.pl freedns-admin+184936.42.pl 1769551662 86400 10800 3600000 10800
um.kalisz.plMX010mail.um.kalisz.pl
um.kalisz.plNS0fns2.42.pl
um.kalisz.plNS0fns1.42.pl
um.kalisz.plTXT0fe8a4ad07a82397e093dc0a4ca65403195f59f4ba6381cade0b4550e6bb0cb5
um.kalisz.plTXT0v=spf1 mx ip4:89.231.0.242 -all
um.kalisz.plCAA00 issue certum.pl
um.kalisz.plCAA00 issue letsencrypt.org

Get alerted the moment um.kalisz.pl's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch um.kalisz.pl 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.

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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