hc3.dk

📜 Historical scan 2026-07-04 19:21:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

hc3.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.228 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by hc3-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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.

🖥️ Nameservers#

2 records 67ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 75ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.228	3600s	webcluster2.webpod18-cph3.g1i.one	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	hc3-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 2a01:111:f403:ca04::e 52.101.68.18 52.101.73.153 52.101.73.22 52.101.73.24	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

1 records 66ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:108:8023:e9e4:1c2b:1e51	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 256ms

TXT Record
MS=ms83293245
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (hc3.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 11:29:06

www	46.30.215.228 2a02:2350:5:108:8023:e9e4:1c2b:1e51 (AS51468) (address records, no CNAME)
www vs bare domain	Same network hc3.dk: 46.30.215.228 2a02:2350:5:108:8023:e9e4:1c2b:1e51 (AS51468) www.hc3.dk: 46.30.215.228 2a02:2350:5:108:8023:e9e4:1c2b:1e51 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-hc3-dk._domainkey.hc3dk.k-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-hc3-dk._domainkey.hc3dk.k-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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

250ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026070305
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-04 08:56:24

Field	Value
Registrar	ONE.COM A/S
Registered	2026-02-27
Expires	2027-02-26 (130d)

📋 WHOIS#

⏱️ Lookup Timing#

67ms

75ms

80ms

AAAA

66ms

TXT

256ms

CAA

64ms

HTTPS

77ms

TLSA

493ms

SOA

0ms

MTA-STS

74ms

DNSSEC

250ms

SRV

232ms

Total

2359ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 08:25:25	2973ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 06:41:25	1106ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 06:21:35	10204ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-05 20:54:25	1359ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-03 18:31:26	16869ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 19:21:37 shown	2359ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 12:15:04	2092ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 04:49:31	1444ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 16:44:43	3517ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 16:24:34	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 22:02:10	694ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:56:07	1253ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:53:02	1380ms	2 NS 1 A 1 MX	🔒 Secure