DNS Record Lookup

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

Hosting & Network

rechenzentrum.koeln runs on AS34549 (multi-homed across 2 networks), with email configured.

Hosting network
AS34549multi-homedAS34549AS51699
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
Set

Sits alongside 1,604 other sites on AS34549. Stable here since we started watching (Sep 11, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to rechenzentrum.koeln.

DNS Records for rechenzentrum.koeln

HostnameTypeTTLPriorityContent
rechenzentrum.koelnCAA00 issue letsencrypt.org
rechenzentrum.koelnA05.1.64.2
rechenzentrum.koelnAAAA02a07:6fc0:5:0:5:1:64:2
rechenzentrum.koelnMX020mail-relay-02.netzfabrik.eu
rechenzentrum.koelnMX010mail-relay-01.netzfabrik.eu
rechenzentrum.koelnSOA3600rechenzentrum.koeln dns.netzfabrik.com 2017070917 7200 3600 86400 3600
rechenzentrum.koelnNS0ns1.netzfabrik.com
rechenzentrum.koelnNS0ns4.netzfabrik.com
rechenzentrum.koelnNS0ns3.netzfabrik.com
rechenzentrum.koelnNS0ns2.netzfabrik.com
www.rechenzentrum.koelnSOA3600rechenzentrum.koeln dns.netzfabrik.com 2017070917 7200 3600 86400 3600
www.rechenzentrum.koelnCAA00 issue letsencrypt.org
www.rechenzentrum.koelnMX020mail-relay-02.netzfabrik.eu
www.rechenzentrum.koelnMX010mail-relay-01.netzfabrik.eu
www.rechenzentrum.koelnA05.1.64.2
www.rechenzentrum.koelnAAAA02a07:6fc0:5:0:5:1:64:2
www.rechenzentrum.koelnCNAME0rechenzentrum.koeln
www.rechenzentrum.koelnNS0ns2.netzfabrik.com
www.rechenzentrum.koelnNS0ns1.netzfabrik.com
www.rechenzentrum.koelnNS0ns4.netzfabrik.com
www.rechenzentrum.koelnNS0ns3.netzfabrik.com

Get alerted the moment rechenzentrum.koeln's DNS changes

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

Uptime

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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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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