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Hosting & Network

e-api.cz runs on AS24971, with email via Microsoft 365.

Hosting network
AS24971AS24971
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 4,999+ other sites on AS24971. Stable here since we started watching (Jul 20, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to w20025.m1.emersion.eu.

DNS Records for e-api.cz

HostnameTypeTTLPriorityContent
e-api.czMX0eapi-cz0c.mail.protection.outlook.com
e-api.czAAAA02a01:430:100:60::5
e-api.czA085.118.134.158
e-api.czTXT0MS=ms70678072
e-api.czTXT0v=spf1 include:spf.protection.outlook.com a:mail.podnikova-akademie.cz include:spf-wh.avonet.cz a:list.itprofit.cz. -all
e-api.czSOA3600ns.avonet.cz hostmaster.avonet.cz 2024092302 3600 1800 2419200 3600
e-api.czNS0ns.avonet.cz
e-api.czNS0tns.avonet.cz
e-api.czNS0sns.avonet.cz
www.e-api.czCNAME0w20025.m1.emersion.eu
www.e-api.czA085.118.134.158
www.e-api.czAAAA02a01:430:100:60::5

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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

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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