halco.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.155.240 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by halco-dk.mail.protection.outlook.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 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 |
|---|---|---|---|---|---|---|---|
| 93.191.155.240 | 600s | forward.dnsfactory.dk | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.97.105.72 |
| 🔶 Autoconfig | 93.191.155.240 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:67c:3c0:12::53 | 3600s | — | AS51468 | One.com A/S | 2001:67c:3c0:0:0:0:0:0/48 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms80588410 |
| v=spf1 ip4:78.156.105.132 include:spf.protection.outlook.com -all |
| Policy | Record (halco.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:78.156.105.132 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.halco.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@halco.dk |
| www | 185.21.40.74 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-halco-dk._domainkey.halcoaps.onmicrosoft.com | RSA · ~1024 bit below 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: 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 | 2023112901 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 08:15:09 | 1065ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 15:20:59 | 1986ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 03:22:36 | 635ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:26:23 | 938ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-28 10:25:47 | 11428ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 09:13:25 | 9485ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 00:59:11 | 1856ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 11:20:15 | 892ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 04:02:58 shown | 783ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:47:20 | 824ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:43:47 | 926ms | 2 NS 1 A 1 MX | 🔒 Secure |