mestermadsen.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 10 September 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by mestermadsen-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 198.202.211.1 | 600s | — | AS209242 | Cloudflare London, LLC | 198.202.211.0/24 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.240.152 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all |
| Policy | Record (mestermadsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all |
| Policy | Record (_dmarc.mestermadsen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email |
| www CNAME | cdn.webflow.com (all on webflow.com) |
| www vs bare domain | Same network mestermadsen.dk: 198.202.211.1 (AS209242) www.mestermadsen.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-mestermadsen-dk._domainkey.mestermadsen.q-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-mestermadsen-dk._domainkey.mestermadsen.q-v1.dkim.mail.microsoft | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mestermadsen.dk | YGPR93RI-pTBzQECxk0zOCSU5MRmXubqTU6B0FYcho8 |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026061615 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2002-09-10 |
| Expires | 2027-09-30 (340d) |
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).
| Domain | Registrar |
|---|---|
| uniklister.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 11:56:22 | 1092ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 09:46:33 | 2695ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 09:23:17 | 1162ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 14:48:48 | 10369ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 01:00:19 | 4796ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 11:54:10 | 1155ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 00:33:57 shown | 857ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 20:49:56 | 1886ms | 3 NS 1 A 1 MX | 🔓 Insecure |