DNS Record Lookup

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

sems.ch

DNS Records

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Hosting & Network

sems.ch runs on AS47302, with email configured.

Hosting network
AS47302AS47302
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 768 other sites on AS47302. Stable here since we started watching (Jul 21, 2026).

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

DNS Records for sems.ch

HostnameTypeTTLPriorityContent
sems.chA0149.126.4.109
sems.chSOA3600ns1.cyon.ch server.cyon.ch 2024101703 14400 1800 1209600 3600
sems.chMX0mail.sems.ch
sems.chAAAA02a01:ab20:0:4::109
sems.chNS0ns1.cyon.ch
sems.chNS0ns2.cyon.ch
sems.chTXT0v=spf1 include:_spf.createsend.com include:spf.protection.cyon.net -all
www.sems.chA0149.126.4.109
www.sems.chCNAME0sems.ch
www.sems.chTXT0v=spf1 include:_spf.createsend.com include:spf.protection.cyon.net -all
www.sems.chMX0mail.sems.ch
www.sems.chNS0ns1.cyon.ch
www.sems.chNS0ns2.cyon.ch
www.sems.chAAAA02a01:ab20:0:4::109
www.sems.chSOA3600ns1.cyon.ch server.cyon.ch 2024101703 14400 1800 1209600 3600

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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