underklang.dk is a .dk domain served by 2 nameservers (ns1.desec.io, ns2.desec.org). It was registered on 26 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 108.61.211.144 is hosted by The Constant Company, LLC (AS20473) in Germany. Mail is handled by mx.runbox.com. 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 |
|---|---|---|---|---|---|---|---|
| 108.61.211.144 | 3600s | v.16b1.dk | AS20473 | The Constant Company, LLC | 108.61.192.0/19 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.runbox.com | 185.226.149.25 | aibo.runbox.com | AS50304 Blix Solutions AS |
| TXT Record |
|---|
| v=spf1 ip4:89.150.157.211 ip4:108.61.211.144 include:spf.runbox.com -all |
| Policy | Record (underklang.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:89.150.157.211 ip4:108.61.211.144 include:spf.runbox.com -all |
| Policy | Record (_dmarc.underklang.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@underklang.dk; |
| Flags | Tag | Value |
|---|---|---|
| 128 | issue | letsencrypt.org |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 6EBCEFB4210B088654A38B03FEA3D7D1… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 9D637B3D27A9E570D07607B9CCADB80A… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | A698A20824BE04E47A1A33C4FA488731… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | B3FB5D00E994CDDF2CC9A4EEA9F806BC… |
| SMTP _25._tcp.mx.runbox.com | DANE-EE · SPKI · SHA-256 | 9A5D69227185C22FB9204903B517A029… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 2E8307068B6DB620E4A39D068B5DEE5D… |
| SMTP _25._tcp.mx.runbox.com | DANE-TA · SPKI · SHA-256 | 51AAA87D984B559AC69E929F888A022D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026045866 |
| Primary NS (MNAME) | get.desec.io |
| Responsible (RNAME) | get@desec.io |
| Refresh | 86400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Netsite A/S |
| Registered | 2026-04-26 |
| Expires | 2027-04-25 (190d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 10:23:33 shown | 785ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 15:57:31 | 781ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 07:00:12 | 893ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 05:24:51 | 1973ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 05:05:24 | 805ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 20:44:02 | 1262ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 15:43:59 | 965ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 10:22:22 | 1147ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 14:53:05 | 624ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-21 03:32:11 | 1488ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 17:43:22 | 1023ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 10:19:59 | 2149ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-01 22:48:20 | 1231ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-24 16:32:29 | 1100ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 19:21:43 | 2892ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 04:48:57 | 903ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 14:50:53 | 6199ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 16:22:45 | 614ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 00:20:42 | 1437ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 08:16:02 | 2731ms | 2 NS 1 A 1 MX | 🔒 Secure |