DNS Record Lookup
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Hosting & Network
gfz.de runs on AS680, with email configured.
- Hosting network
- AS680AS680
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- Set
Sits alongside 8,066 other sites on AS680. Stable here since we started watching (Aug 24, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to gfz.de.
DNS Records for gfz.de
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| gfz.de | SOA | 3600 | zrt7b.gfz-potsdam.de its-ddi.gfz.de 2026111200 14400 3600 2592000 3600 | |
| gfz.de | NS | 0 | deneb.dfn.de | |
| gfz.de | NS | 0 | zrt7b.gfz-potsdam.de | |
| gfz.de | A | 0 | 139.17.229.15 | |
| gfz.de | MX | 0 | 10 | b1791.mx.srv.dfn.de |
| gfz.de | MX | 0 | 10 | a1791.mx.srv.dfn.de |
| gfz.de | MX | 0 | 10 | c1791.mx.srv.dfn.de |
| gfz.de | CAA | 0 | 0 issue pki.dfn.de | |
| gfz.de | CAA | 0 | 0 issue harica.gr | |
| gfz.de | CAA | 0 | 0 issue sectigo.com | |
| gfz.de | TXT | 0 | google-site-verification=PBmbfc0roQUVqC9JRR5CG3I8Dde-BsCDpxsdcOSSVi4 | |
| gfz.de | TXT | 0 | openai-domain-verification=dv-9tE5pBQ3FyUnoOmhgRwTtFq2 | |
| gfz.de | TXT | 0 | anthropic-domain-verification-ch9pe6=C8I1GLXPfEOCBEOHXlJpRwe5O | |
| gfz.de | TXT | 0 | v=spf1 a:mail.gfz.de a:otc-de-spf.mms.t-systems-service.com a:gfz-potsdam.managed-otrs.com ~all | |
| gfz.de | TXT | 0 | HARICA-daixckcDu6hTgkCM3hk | |
| gfz.de | TXT | 0 | apple-domain-verification=x4FbNnccJGQzMTnS | |
| gfz.de | TXT | 0 | google-site-verification=5DbFz1OqPjnkQBkd3L4S0nfb9_uVY9PyhjzaA1tVqls | |
| gfz.de | TXT | 0 | google-site-verification=xZys4ru3dIHJgPjigJsVn4lxGuWDLkVhMt8pI5-UhcE | |
| gfz.de | TXT | 0 | HARICA-IzxpNjCnCSSvI7wP1Mh | |
| gfz.de | TXT | 0 | brevo-code:6fad695b8997745705f7bded854ca36f | |
| gfz.de | TXT | 0 | ZOOM_verify_WMcZHMblRpm62qSZoQBMGt | |
| gfz.de | TXT | 0 | HARICA-Atmb6pR6Dtv9DZMiMY7 | |
| www.gfz.de | CNAME | 0 | gfz.de | |
| www.gfz.de | NS | 0 | deneb.dfn.de | |
| www.gfz.de | NS | 0 | zrt7b.gfz-potsdam.de | |
| www.gfz.de | A | 0 | 139.17.229.15 | |
| www.gfz.de | CAA | 0 | 0 issue harica.gr | |
| www.gfz.de | CAA | 0 | 0 issue pki.dfn.de | |
| www.gfz.de | CAA | 0 | 0 issue sectigo.com | |
| www.gfz.de | MX | 0 | 10 | c1791.mx.srv.dfn.de |
| www.gfz.de | MX | 0 | 10 | b1791.mx.srv.dfn.de |
| www.gfz.de | MX | 0 | 10 | a1791.mx.srv.dfn.de |
| www.gfz.de | SOA | 3600 | zrt7b.gfz-potsdam.de its-ddi.gfz.de 2026111200 14400 3600 2592000 3600 | |
| www.gfz.de | TXT | 0 | google-site-verification=PBmbfc0roQUVqC9JRR5CG3I8Dde-BsCDpxsdcOSSVi4 | |
| www.gfz.de | TXT | 0 | google-site-verification=xZys4ru3dIHJgPjigJsVn4lxGuWDLkVhMt8pI5-UhcE | |
| www.gfz.de | TXT | 0 | openai-domain-verification=dv-9tE5pBQ3FyUnoOmhgRwTtFq2 | |
| www.gfz.de | TXT | 0 | ZOOM_verify_WMcZHMblRpm62qSZoQBMGt | |
| www.gfz.de | TXT | 0 | v=spf1 a:mail.gfz.de a:otc-de-spf.mms.t-systems-service.com a:gfz-potsdam.managed-otrs.com ~all | |
| www.gfz.de | TXT | 0 | apple-domain-verification=x4FbNnccJGQzMTnS | |
| www.gfz.de | TXT | 0 | HARICA-Atmb6pR6Dtv9DZMiMY7 | |
| www.gfz.de | TXT | 0 | HARICA-daixckcDu6hTgkCM3hk | |
| www.gfz.de | TXT | 0 | google-site-verification=5DbFz1OqPjnkQBkd3L4S0nfb9_uVY9PyhjzaA1tVqls | |
| www.gfz.de | TXT | 0 | anthropic-domain-verification-ch9pe6=C8I1GLXPfEOCBEOHXlJpRwe5O | |
| www.gfz.de | TXT | 0 | brevo-code:6fad695b8997745705f7bded854ca36f | |
| www.gfz.de | TXT | 0 | HARICA-IzxpNjCnCSSvI7wP1Mh |
Get alerted the moment gfz.de's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch gfz.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, CNAME, TXT 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
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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