ser.dk

📜 Historical scan 2026-08-26 07:46:13  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ser.dk is a .dk domain served by 2 nameservers (ns1.itmaster.net, ns2.itmaster.net). It was registered on 15 October 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.55.22.237 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.itmaster.net. The zone is not DNSSEC-signed, publishes a 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   68ms
NameserverIP addressesPTRASN / ISP
ns1.itmaster.net 162.55.22.237 web1.itmaster.net AS24940 Hetzner Online GmbH
ns2.itmaster.net 65.108.58.212 ns2.itmaster.net AS24940 Hetzner Online GmbH

🌍 A Records#

1 records   54ms
IPTTLPTRASNISP / OrgCIDRCountryCity
162.55.22.237 3600s web1.itmaster.net AS24940 Hetzner Online GmbH 162.55.0.0/16 🇩🇪 Germany Falkenstein

📧 MX Records#

1 records   65ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.itmaster.net 142.132.131.220
2a01:4f8:272:2809::5		 mail.itmaster.net
mail.itmaster.net		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   154ms
ServicePriorityWeightPortTarget
_imaps._tcp 0 5 143 mail.itmaster.net

📝 TXT Records#

1 records   328ms
TXT Record
v=spf1 +a +mx +a:spf.itmaster.net -all

✉️ SPF#

PolicyRecord (ser.dk)
-all (hard fail) v=spf1 +a +mx +a:spf.itmaster.net -all

📨 DMARC#

PolicyRecord (_dmarc.ser.dk)
p=quarantine v=DMARC1; p=quarantine; adkim=s; aspf=s

📬 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 2026-10-10 01:47:23
www CNAMEser.dk (all on ser.dk)
www vs bare domainSame network
WildcardNo

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — 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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

97ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2024041701
Primary NS (MNAME)ns1.itmaster.net
Responsible (RNAME)vp@infrequent.group
Refresh3600s
Retry600s
Expire1209600s
Minimum (neg-cache TTL)10800s

📋 Registration#

WHOIS fetched 2026-10-15 13:03:34
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2023-10-15
Expires2027-10-14 (362d)

🔗 Same registrant#

4 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).

DomainRegistrar
morvea.dkPunktum dk A/S (direct)
pahuus.dkPunktum dk A/S (direct)
radiolort.dkPunktum dk A/S (direct)
xso.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
68ms
A
54ms
MX
65ms
AAAA
60ms
TXT
328ms
CAA
54ms
HTTPS
70ms
TLSA
86ms
SOA
0ms
MTA-STS
118ms
DNSSEC
97ms
SRV
154ms
Total
761ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 06:34:22 895ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-24 06:51:43 2649ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-01 17:40:20 1085ms 2 NS 1 A 1 MX 🔓 Insecure
2026-08-26 07:46:13 shown 761ms 2 NS 1 A 1 MX 🔓 Insecure
2026-06-18 03:25:04 2357ms 2 NS 1 A 1 MX 🔓 Insecure
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