DNS Record Lookup

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

Hosting & Network

bi-sec.org runs on Hetzner, with email via Microsoft 365.

Hosting network
HetznerAS24940Hetzner
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 4,999+ other sites on Hetzner. Stable here since we started watching (Jul 27, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to bi-sec.de.

DNS Records for bi-sec.org

HostnameTypeTTLPriorityContent
bi-sec.orgSOA300ns.checkdomain.de hostmaster.checkdomain.de 2026060805 40000 7200 604800 300
bi-sec.orgMX010bisec-org0e.mail.protection.outlook.com
bi-sec.orgA078.46.83.177
bi-sec.orgNS0ns2.checkdomain.de
bi-sec.orgNS0ns.checkdomain.de
bi-sec.orgTXT0v=spf1 include:spf.protection.outlook.com -all
bi-sec.orgTXT0MS=ms11848259
www.bi-sec.orgCNAME0bi-sec.de
www.bi-sec.orgTXT0MS=ms27315448
www.bi-sec.orgTXT0v=spf1 include:spf.protection.outlook.com -all
www.bi-sec.orgTXT0google-site-verification=FJwot4fNO7FCYZM4XA_1LVtXF5y-aq5406BwmfbFu0M
www.bi-sec.orgSOA300ns.checkdomain.de hostmaster.checkdomain.de 2026051601 40000 7200 604800 300
www.bi-sec.orgNS0ns.checkdomain.de
www.bi-sec.orgNS0ns2.checkdomain.de
www.bi-sec.orgMX010bisec-de0e.mail.protection.outlook.com
www.bi-sec.orgA078.46.83.177

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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.

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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