sonberg.dk is a .dk domain served by 2 nameservers (brenda.ns.cloudflare.com, drew.ns.cloudflare.com). It was registered on 10 August 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.19.143 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by in1-smtp.messagingengine.com, in2-smtp.messagingengine.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.19.143 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.186.124 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:138f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:ba7c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.19.143,172.67.186.124 ech=AEX+DQBByAAgACDkPIGbdvtH23IKJWkgQJjHKIVJ0qWWHM1aJxtba/6nFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:138f,2606:4700:3033::ac43:ba7c |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imaps._tcp | 0 | 1 | 993 | imap.fastmail.com |
| TXT Record |
|---|
| v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (sonberg.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (_dmarc.sonberg.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:re+fhbavgiqb98@dmarc.postmarkapp.com; sp=none; aspf=r; |
| www | Exists, no address |
| www vs bare domain | www does not resolve sonberg.dk: 104.21.19.143 172.67.186.124 2606:4700:3033::6815:138f 2606:4700:3033::ac43:ba7c (AS13335) (all like this)www.sonberg.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: ?all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2416159695 |
| Primary NS (MNAME) | brenda.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2021-08-10 |
| Expires | 2027-08-31 (315d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 21:02:39 shown | 1045ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-29 12:28:51 | 1673ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-27 12:10:53 | 1064ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-08 06:36:20 | 1553ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-26 21:52:09 | 810ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-11 03:02:11 | 2137ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-07 10:23:33 | 1600ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-17 22:32:07 | 7502ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-07 01:32:26 | 9601ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-29 17:25:00 | 949ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-22 21:25:38 | 1124ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-17 21:39:37 | 890ms | 2 NS 2 A 2 MX | 🔒 Secure |