auto-u.dk

📜 Historical scan 2026-09-14 08:53:29  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

auto-u.dk is a .dk domain served by 3 nameservers (ns1.koldfront.dk, ns2.koldfront.dk, ns3.koldfront.dk). It was registered on 12 October 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.178.116 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by mail.auto-u.dk, anton.koldfront.dk and 1 more. The zone is not DNSSEC-signed, publishes a 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#

3 records   1224ms
NameserverIP addressesPTRASN / 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 Records#

1 records   1207ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.237.178.116 86400s virgil.koldfront.dk AS204151 EWII Bredbaand A/S 212.237.176.0/21 🇩🇰 Denmark Ølstykke

📧 MX Records#

3 records   1234ms
PriorityTTLMail ServerIP addressesPTRASN
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   1229ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
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 Records#

1 records   521ms
TXT Record
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

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

📬 MTA-STS#

1415ms
CheckResult
Status⚠️ Invalid
TXT record (_mta-sts)✓ Found
HTTPS policy✗ Missing / invalid
Policy ID202008241900
Policy MX—

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled —

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 05:07:05
www CNAMEvirgil.koldfront.dk (all on koldfront.dk)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
mail — 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#

1299ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026072562
Primary NS (MNAME)ns1.koldfront.dk
Responsible (RNAME)asjo@koldfront.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-12 02:09:48
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2018-10-12
Expires2026-10-31 (14d)

🔗 Same registrant#

1 domain

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).

DomainRegistrar
busforsyningen.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
1224ms
A
1207ms
MX
1234ms
AAAA
1229ms
TXT
521ms
CAA
1225ms
HTTPS
58ms
TLSA
5782ms
SOA
0ms
MTA-STS
1415ms
DNSSEC
1299ms
SRV
1335ms
Total
9361ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-16 05:07:05 4455ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-14 03:21:35 6359ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-12 01:37:06 9007ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-08 22:59:43 5212ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-07 22:52:53 986ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-06 22:49:59 8630ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-05 20:08:02 738ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-03 19:58:59 2921ms 3 NS 1 A 3 MX 🔓 Insecure
2026-10-02 19:57:49 7059ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-29 16:50:09 24245ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-28 20:15:26 6263ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-27 20:08:35 13493ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-26 20:00:33 7208ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-24 19:46:33 955ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-23 18:59:36 8418ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-20 15:11:05 6228ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-14 08:53:29 shown 9361ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-09 13:18:42 4736ms 3 NS 1 A 3 MX 🔓 Insecure
2026-09-05 15:29:49 9161ms 3 NS 1 A 3 MX 🔓 Insecure
2026-08-30 22:54:16 7528ms 3 NS 1 A 3 MX 🔓 Insecure
2026-08-28 09:13:46 17984ms 3 NS 1 A 3 MX 🔓 Insecure
2026-08-25 13:36:44 10830ms 3 NS 1 A 3 MX 🔓 Insecure
2026-08-24 13:17:22 13206ms 3 NS 1 A 3 MX 🔓 Insecure
2026-08-23 11:04:39 6590ms 3 NS 1 A 3 MX 🔓 Insecure
2026-08-22 10:29:17 10279ms 3 NS 1 A 3 MX 🔓 Insecure
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