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cst2021.gov.pl

DNS Records

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Hosting & Network

cst2021.gov.pl runs on Oracle Cloud, with email configured.

Hosting network
Oracle CloudAS31898Oracle Cloud
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 4,999+ other sites on Oracle Cloud. Stable here since we started watching (Aug 30, 2026).

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

DNS Records for cst2021.gov.pl

HostnameTypeTTLPriorityContent
cst2021.gov.plMX010merkury02.mfipr.gov.pl
cst2021.gov.plMX05merkury01.mfipr.gov.pl
cst2021.gov.plSOA3600ns1.mrr.gov.pl admin.mrr.gov.pl 2026042001 3600 7200 1209600 3600
cst2021.gov.plTXT0e4de3f8aa03ae28b300ea1c8aae612576acd8b5d9d9fd16398e81e2d74db5fc
cst2021.gov.plTXT0v=spf1 ip4:130.61.45.33 mx:sl.gov.pl include:rp.oracleemaildelivery.com include:ap.rp.oracleemaildelivery.com include:eu.rp.oracleemaildelivery.com -all
cst2021.gov.plA0129.159.30.44
cst2021.gov.plNS0ns2.mrr.gov.pl
cst2021.gov.plNS0ns1.mrr.gov.pl
www.cst2021.gov.plA0129.159.30.44

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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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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