tag-murer.dk is a .dk domain served by 2 nameservers (desi.ns.cloudflare.com, jim.ns.cloudflare.com). It was registered on 11 April 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.68 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is of unknown DNSSEC status, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.40.68 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.179.228 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| 🔶 Autoconfig | 172.67.179.228 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:b3e4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:2844 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.40.68,172.67.179.228 ech=AEX+DQBBoAAgACCdB77RY4ys6HuAV9Np6yEnf9TmmN3AwD/yqyEvgKFqCQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:b3e4,2606:4700:3036::6815:2844 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms42419761 |
| v=spf1 include:_spf.centerasecurity.dk -all |
| Policy | Record (tag-murer.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.centerasecurity.dk -all |
| Policy | Record (_dmarc.tag-murer.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:491ef5ba1d124788bb1846f36f0729b5@dmarc-reports.cloudflare.net |
| www | 94.231.103.55 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | ❓ Unknown |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'tag-murer.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2409379740 |
| Primary NS (MNAME) | desi.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 | 2003-04-11 |
| Expires | 2027-04-30 (187d) |
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 |
|---|---|---|---|
| 2026-10-17 17:27:38 | 1171ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-03 23:01:45 | 1166ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-29 22:46:29 | 992ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-28 22:36:39 | 1005ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-25 21:41:48 | 1309ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-23 20:13:52 | 1210ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-23 18:51:21 | 956ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-21 16:15:12 | 1816ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-14 15:31:35 | 1036ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-09 06:22:48 | 1589ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-31 06:09:34 | 932ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-30 01:40:25 | 1819ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-26 15:52:07 | 1100ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-23 22:26:44 | 5824ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-06 12:06:53 | 1902ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-21 15:00:09 | 3674ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-16 15:53:53 shown | 1736ms | 2 NS 2 A 3 MX | ❓ Unknown |
| 2026-06-21 08:13:17 | 3492ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-18 01:34:10 | 2039ms | 2 NS 2 A 3 MX | 🔓 Insecure |