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Hosting & Network

doppelboden.koeln runs on AS31103, with email configured.

Hosting network
AS31103AS31103
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 10,471 other sites on AS31103. Stable here since we started watching (Sep 14, 2026).

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

DNS Records for doppelboden.koeln

HostnameTypeTTLPriorityContent
doppelboden.koelnTXT0v=spf1 +a +mx ip6:2001:1b60:3:252:3729:ffff:ffff:ffff ip4:87.118.121.55 include:_spf.google.com +a:lahno-web7.de -all
doppelboden.koelnSOA10800ns2.lahno-web7.de info.sysbotec.de 2026030901 10800 3600 1209600 10800
doppelboden.koelnA087.118.121.55
doppelboden.koelnMX010mail.doppelboden.koeln
doppelboden.koelnNS0ns1.lahno-web7.de
doppelboden.koelnNS0ns2.lahno-web7.de
www.doppelboden.koelnTXT0v=spf1 +a +mx ip6:2001:1b60:3:252:3729:ffff:ffff:ffff ip4:87.118.121.55 include:_spf.google.com +a:lahno-web7.de -all
www.doppelboden.koelnCNAME0doppelboden.koeln
www.doppelboden.koelnMX010mail.doppelboden.koeln
www.doppelboden.koelnA087.118.121.55
www.doppelboden.koelnSOA10800ns2.lahno-web7.de info.sysbotec.de 2026030901 10800 3600 1209600 10800
www.doppelboden.koelnNS0ns1.lahno-web7.de
www.doppelboden.koelnNS0ns2.lahno-web7.de

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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