tc-holding.dk

📜 Historical scan 2026-08-26 18:42:34 · ← Latest scan

tc-holding.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). Mail is handled by tcholding-dk0e.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 46ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records

🌍

No A records found

📧 MX Records

1 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	tcholding-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::5 2a01:111:f403:ca09::8 2a01:111:f403:ca38::8 52.101.103.137 52.101.68.15 52.101.68.16 52.101.73.24	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

2 records 160ms

TXT Record
MS=ms63278463
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (tc-holding.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 2026-09-30 09:35:34

www	NXDOMAIN
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
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

89ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA

0ms

Field	Value
Serial	2026062901
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

46ms

37ms

65ms

AAAA

39ms

TXT

160ms

CAA

79ms

HTTPS

45ms

TLSA

363ms

SOA

0ms

MTA-STS

61ms

DNSSEC

89ms

SRV

67ms

Total

944ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-26 08:46:55	1190ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-28 05:29:07	1711ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-26 18:42:34 shown	944ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-30 09:23:14	1191ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-27 04:31:37	637ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-21 23:07:43	1380ms	3 NS 0 A 1 MX	🔒 Secure
2026-06-17 12:54:23	2017ms	3 NS 0 A 1 MX	🔒 Secure