soenderborg.dk is a .dk domain served by 4 nameservers (ns1-02.azure-dns.com, ns2-02.azure-dns.net, ns3-02.azure-dns.org and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.62.237.16 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by smtp3.soenderborg.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 80.62.237.16 | 3600s | 16.1-126.237.62.80.in-addr.arpa pki.sonderborg.dk vejledninger.sonderborg.dk |
AS3292 | TDC Holding A/S | 80.62.0.0/15 | 🇩🇰 Denmark | Sønderborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | smtp3.soenderborg.dk | 80.62.237.13 80.62.237.13 |
13.1-126.237.62.80.in-addr.arpa smtp3.sonderborg.dk |
AS3292 TDC Holding A/S AS3292 TDC Holding A/S |
| TXT Record |
|---|
| apple-domain-verification=QkOh3R1vefcyr6qW |
| v=spf1 ip4:80.62.237.0/25 ip4:213.174.69.253 ip4:213.174.69.254 ip4:77.221.226.241 a:edge1.kmd.dk a:edge2.kmd.dk include:spf.protection.outlook.com include:servers.mcsv.net -all |
| Policy | Record (soenderborg.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:80.62.237.0/25 ip4:213.174.69.253 ip4:213.174.69.254 ip4:77.221.226.241 a:edge1.kmd.dk a:edge2.kmd.dk include:spf.protection.outlook.com include:servers.mcsv.net -all |
| Policy | Record (_dmarc.soenderborg.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:653640a21c83d@dmarc.centerasecurity.com; sp=quarantine; fo=1; |
| www CNAME | skdmzweb01.sonderborg.dk (all on sonderborg.dk) → 80.62.237.16 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| BIMI | v=BIMI1; l=https://vejledninger.sonderborg.dk/uendelighedstegn_groen_RGB.svg;a=; |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 1040115174 |
| Primary NS (MNAME) | ns1-02.azure-dns.com |
| Responsible (RNAME) | hostmaster@sonderborg.dk |
| Refresh | 43200s |
| Retry | 3600s |
| Expire | 2678400s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-19 18:29:43 shown | 821ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 11:44:12 | 646ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 07:53:00 | 1208ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 06:47:13 | 9179ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 14:42:21 | 1398ms | 4 NS 1 A 1 MX | 🔒 Secure |