koldfront.dk DNS records

🖥️ Nameservers3 records 79ms

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 80ms

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	Frederikssund

📧 MX Records3 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.koldfront.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 87ms

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

🔌 SRV Records2 records 191ms

Service	Priority	Weight	Port	Target
_xmpp-client._tcp	5	0	5222	koldfront.dk
_xmpp-server._tcp	5	0	5269	koldfront.dk

📝 TXT Records2 records 400ms

TXT Record
v=spf1 ip4:212.237.178.116 a:virgil.koldfront.dk mx -all
yahoo-verification-key=CoqcwyNYmerl+IbNY32SK/vnmtVLY3SWvT4VtMrkJys=

✉️ SPF

Policy	Record (koldfront.dk)
-all (hard fail)	v=spf1 ip4:212.237.178.116 a:virgil.koldfront.dk mx -all

📨 DMARC

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

📬 MTA-STS370ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	202408091347
max_age	2592000s
Policy MX	mail.koldfront.dk, clara.koldfront.dk, anton.koldfront.dk, mail.asjo.org, mail.auto-u.dk, mail.azda.se, mail.vantbanken.se, mail.kammeratadam.dk, mail.feedbase.org, mail.olduse.net, mail.d-a-d.band

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records2 records 109ms

Flags	Tag	Value
0	iodef	mailto:asjo@koldfront.dk
0	issue	letsencrypt.org

🔗 TLSA / DANE

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

🔐 DNSSEC212ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080714
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

79ms

A

80ms

MX

81ms

AAAA

87ms

TXT

400ms

CAA

109ms

HTTPS

120ms

TLSA

177ms

SOA

0ms

MTA-STS

370ms

DNSSEC

212ms

SRV

191ms

Total

1610ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 07:37:20	1610ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-28 00:21:21	3181ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-25 15:23:24	2136ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-24 14:50:19	7202ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-23 14:20:03	6118ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-22 13:16:12	9844ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-21 13:05:34	13103ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-20 12:51:15	25807ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-19 07:57:26	16877ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-17 06:43:50	5930ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-15 08:19:59	6160ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-13 07:43:37	2072ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-12 06:46:34	3307ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-10 10:51:52	8625ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-09 00:15:08	11228ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-08-03 11:50:14	6260ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-31 12:24:32	29245ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-27 11:42:56	25124ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-26 11:34:31	3664ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-25 11:14:36	31926ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-24 10:49:17	52473ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-23 09:23:02	11686ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-22 01:07:53	16352ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-20 09:43:22	27349ms	3 NS 1 A 3 MX	🔒 Secure	View
2026-07-19 01:55:44	20381ms	3 NS 1 A 3 MX	🔒 Secure	View