interstuhl.dk is a .dk domain served by 5 nameservers (ns.gbc.gmbh, ns.gbc.green, ns.gbc.jetzt and 2 more). It was registered on 4 July 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.154.78.86 is hosted by Deutsche Telekom AG (AS3320) in Germany. Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 80.154.78.86 | 14400s | — | AS3320 | Deutsche Telekom AG | 80.152.0.0/14 | 🇩🇪 Germany | Albstadt |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (interstuhl.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.interstuhl.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@interstuhl.de!10m; ruf=mailto:dmarc@interstuhl.de!10m; rf=afrf; sp=reject; ri=86400 |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 80.154.78.86 (AS3320) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2024091810 |
| Primary NS (MNAME) | ns.gbc.systems |
| Responsible (RNAME) | support@gbc.net |
| Refresh | 3600s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA |
| Registered | 2011-07-04 |
| Expires | 2027-07-31 (286d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 03:58:58 | 1662ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 22:45:35 | 1292ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 05:16:22 | 4306ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 00:26:26 | 1386ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 15:26:24 shown | 5826ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:19:07 | 2869ms | 5 NS 1 A 0 MX | 🔓 Insecure |