auto-u.dk DNS records

🖥️ Nameservers3 records 1212ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.koldfront.dk	139.162.176.195 2a01:7e01::f03c:91ff:fe2c:eae8	clara.koldfront.dk clara.koldfront.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud
ns2.koldfront.dk	2a01:4f9:c012:be42::1 95.216.188.131	anton.koldfront.dk anton.koldfront.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns3.koldfront.dk	212.237.178.116 2a06:4001:d06f:0:eee7:a7ff:fe1d:826c	virgil.koldfront.dk —	AS204151 EWII Bredbaand A/S AS204151 EWII Bredbaand A/S

🌍 A Records1 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.178.116	86400s	virgil.koldfront.dk	AS204151	EWII Bredbaand A/S	212.237.176.0/21	🇩🇰 Denmark	Ølstykke

📧 MX Records3 records 1210ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.auto-u.dk	212.237.178.116	virgil.koldfront.dk	AS204151 EWII Bredbaand A/S
20	86400s	anton.koldfront.dk	2a01:4f9:c012:be42::1 95.216.188.131	anton.koldfront.dk anton.koldfront.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
20	86400s	clara.koldfront.dk	139.162.176.195 2a01:7e01::f03c:91ff:fe2c:eae8	clara.koldfront.dk clara.koldfront.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud

🔷 AAAA Records (IPv6)1 records 1202ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:4001:d06f:0:eee7:a7ff:fe1d:826c	86400s	—	AS204151	EWII Bredbaand A/S	2a06:4000:0:0:0:0:0:0/29	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 1669ms

TXT Record
v=spf1 mx -all

✉️ SPF

Policy	Record (auto-u.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC

Policy	Record (_dmarc.auto-u.dk)
p=reject	v=DMARC1; p=reject; adkim=r; aspf=r; pct=100

📬 MTA-STS1351ms

Check	Result
Status	⚠️ Invalid
TXT record (_mta-sts)	✓ Found
HTTPS policy	✗ Missing / invalid
Policy ID	202008241900
Policy MX	—

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	—

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

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

🔐 DNSSEC1297ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026072546
Primary NS (MNAME)	ns1.koldfront.dk
Responsible (RNAME)	asjo@koldfront.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

1212ms

A

49ms

MX

1210ms

AAAA

1202ms

TXT

1669ms

CAA

46ms

HTTPS

53ms

TLSA

3571ms

SOA

0ms

MTA-STS

1351ms

DNSSEC

1297ms

SRV

1294ms

Total

7528ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 22:54:16	7528ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-28 09:13:46	17984ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-25 13:36:44	10830ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-24 13:17:22	13206ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-23 11:04:39	6590ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-22 10:29:17	10279ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-21 10:15:09	14982ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-19 08:21:19	11319ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-15 19:00:15	9302ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-14 16:54:44	10051ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-13 10:58:06	4677ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-10 04:52:54	6565ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-08-04 08:06:04	2972ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-27 11:04:26	28161ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-26 10:38:21	16524ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-25 10:09:13	19954ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 07:36:37	32932ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-20 23:08:29	26262ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-19 20:15:43	21629ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-18 19:10:04	5530ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-17 16:06:01	31962ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-12 08:28:02	3534ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-09 09:33:03	19832ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-08 09:26:58	21715ms	3 NS 1 A 3 MX	🔓 Insecure	View
2026-07-05 18:54:12	42692ms	3 NS 1 A 3 MX	🔓 Insecure	View