DNS Record Lookup

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

Hosting & Network

b-ost.ch runs on AS13030, with email via IONOS.

Hosting network
AS13030AS13030
Managed DNS
Self-hosted / other
Email
IONOS
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 2,119 other sites on AS13030. Stable here since we started watching (Aug 9, 2026).

DNS Records for b-ost.ch

HostnameTypeTTLPriorityContent
b-ost.chTXT0v=spf1 include:_spf-eu.ionos.com ~all
b-ost.chMX010mx01.ionos.de
b-ost.chMX010mx00.ionos.de
b-ost.chA077.109.154.134
b-ost.chSOA600ns1066.ui-dns.de hostmaster.1und1.com 2017060109 28800 7200 604800 600
b-ost.chNS0ns1055.ui-dns.biz
b-ost.chNS0ns1086.ui-dns.org
b-ost.chNS0ns1118.ui-dns.com
b-ost.chNS0ns1066.ui-dns.de

Get alerted the moment b-ost.ch's DNS changes

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

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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Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

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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