coresupport.dk

📜 Historical scan 2026-06-24 19:29:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

coresupport.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 October 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.221.196.226 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by coresupport-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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.

🖥️ Nameservers#

2 records 27ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.221.196.226	600s	—	AS51468	One.com A/S	91.221.196.0/23	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	coresupport-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::5 2a01:111:f403:ca04::6 2a01:111:f403:ca09::d 52.101.68.5 52.101.68.8 52.101.73.26 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 114ms

TXT Record
MS=ms54917705
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (coresupport.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 2026-10-17 23:50:10

www	46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domain	Same network coresupport.dk: 91.221.196.226 (AS51468) www.coresupport.dk: 46.30.211.38 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

113ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026062301
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 2026-10-18 00:09:44

Field	Value
Registrar	ONE.COM A/S
Registered	2012-10-04
Expires	2026-10-31 (12d)

🔗 Same registrant#

5 domains

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
2party.dk	ONE.COM A/S
fisseminister.dk	Punktum dk A/S (direct)
helleschaumann.dk	Punktum dk A/S (direct)
kakster.dk	Punktum dk A/S (direct)
silenealle.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

27ms

35ms

40ms

AAAA

39ms

TXT

114ms

CAA

28ms

HTTPS

32ms

TLSA

672ms

SOA

0ms

MTA-STS

42ms

DNSSEC

113ms

SRV

61ms

Total

1154ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 23:50:10	2463ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 11:58:18	1022ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 05:43:33	759ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 12:36:36	936ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 04:13:15	1259ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-24 16:24:50	694ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-25 04:59:33	1118ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 19:29:46 shown	1154ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 15:38:27	4394ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 22:25:43	696ms	2 NS 1 A 1 MX	🔒 Secure