hallberg-it.dk is a .dk domain served by 2 nameservers (mustafa.ns.cloudflare.com, ullis.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.77.180 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.hallbergit.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.77.180 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.210.237 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx01.hallbergit.dk | 167.86.78.83 2a02:c207:2248:59::1 |
mx01.hallbergit.dk mx01.hallbergit.dk |
AS51167 Contabo GmbH AS51167 Contabo GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | maildiscover.hallbergit.dk → 167.86.78.83 |
| 🔶 Autoconfig | maildiscover.hallbergit.dk → 167.86.78.83 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:4db4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:d2ed | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.77.180,172.67.210.237 ech=AEX+DQBB+QAgACCLWpSvAIFyohc3OUz6IkX2zLjZvgwV5XirYBFdcay/AQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4db4,2606:4700:3034::ac43:d2ed |
| TXT Record |
|---|
| have-i-been-pwned-verification=f1114ce4d2468b334f9d71ba1af2ece1 |
| v=spf1 include:_spf.hallbergit.dk -all |
| Policy | Record (hallberg-it.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.hallbergit.dk -all |
| Policy | Record (_dmarc.hallberg-it.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:dmarc@onhallbergit.dk; ruf=mailto:dmarc@onhallbergit.dk; fo=0; adkim=s; aspf=s |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 20241021234126Z |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:tls-report@hallbergit.dk |
| www | 104.21.43.138 172.67.180.49 2606:4700:3033::ac43:b431 2606:4700:3034::6815:2b8a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network hallberg-it.dk: 104.21.43.138 172.67.180.49 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.hallberg-it.dk: 104.21.43.138 172.67.180.49 2606:4700:3033::ac43:b431 2606:4700:3034::6815:2b8a (AS13335) |
| Wildcard | No |
DNS lookups: 1/10 · 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 | 2407388241 |
| Primary NS (MNAME) | mustafa.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 05:41:28 | 485ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 21:59:57 | 707ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 20:51:52 | 9530ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-08 01:17:14 | 1443ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-02 18:43:56 | 9203ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-07-27 23:36:46 | 9286ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-24 22:13:00 | 10615ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-17 09:50:25 | 9614ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-15 22:53:15 | 2215ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-22 21:15:02 shown | 2640ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 10:46:53 | 1344ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 10:41:20 | 1324ms | 2 NS 2 A 1 MX | 🔒 Secure |