DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
cdu-hamburg.de runs on AS39227, with email configured.
- Hosting network
- AS39227AS39227
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 205 other sites on AS39227. Stable here since we started watching (Aug 15, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to cdu-hamburg.de.
DNS Records for cdu-hamburg.de
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cdu-hamburg.de | TXT | 0 | _globalsign-domain-verification=jSw06mhx91zYwq8omajeRvHpEx-icAVi7rBDzQ29L7 | |
| cdu-hamburg.de | TXT | 0 | v=spf1 mx include:dataport.de include:a._spf.sitepackage.de include:b._spf.sitepackage.de include:spf.corpex.de a:mx01.corpex-net.de -all | |
| cdu-hamburg.de | A | 0 | 194.6.194.57 | |
| cdu-hamburg.de | MX | 0 | 10 | mx1.ondataport.de |
| cdu-hamburg.de | MX | 0 | 10 | mx2.ondataport.de |
| cdu-hamburg.de | NS | 0 | dns-auth-1.corpex-dns.de | |
| cdu-hamburg.de | NS | 0 | dns-auth-2.corpex-dns.net | |
| cdu-hamburg.de | SOA | 3600 | dns-auth-1.corpex-dns.de dnsmaster.corpex-dns.de 2024112101 28800 7200 3600000 3600 | |
| www.cdu-hamburg.de | TXT | 0 | v=spf1 mx include:dataport.de include:a._spf.sitepackage.de include:b._spf.sitepackage.de include:spf.corpex.de a:mx01.corpex-net.de -all | |
| www.cdu-hamburg.de | TXT | 0 | _globalsign-domain-verification=jSw06mhx91zYwq8omajeRvHpEx-icAVi7rBDzQ29L7 | |
| www.cdu-hamburg.de | MX | 0 | 10 | mx2.ondataport.de |
| www.cdu-hamburg.de | MX | 0 | 10 | mx1.ondataport.de |
| www.cdu-hamburg.de | SOA | 3600 | dns-auth-1.corpex-dns.de dnsmaster.corpex-dns.de 2024112101 28800 7200 3600000 3600 | |
| www.cdu-hamburg.de | A | 0 | 194.6.194.57 | |
| www.cdu-hamburg.de | CNAME | 0 | cdu-hamburg.de | |
| www.cdu-hamburg.de | NS | 0 | dns-auth-2.corpex-dns.net | |
| www.cdu-hamburg.de | NS | 0 | dns-auth-1.corpex-dns.de |
What's up with DNS →
Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.
Ask about cdu-hamburg.de
BetaAnswers use the live DNS records shown on this page. AI-generated — double-check anything important.
Get alerted the moment cdu-hamburg.de's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch cdu-hamburg.de 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.
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