42s.dk

📜 Historical scan 2026-06-16 12:44:57  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

42s.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 15 September 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.102 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 more. 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#

3 records   25ms
NameserverIP addressesPTRASN / ISP
ns1.e-studio.dk — — —
ns2.e-studio.dk — — —
ns3.e-studio.dk — — —

🌍 A Records#

1 records   28ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.200.90.102 — web9.e-studio.dk AS62121 Christian Ebsen ApS 193.200.90.0/23 🇩🇰 Denmark —

📧 MX Records#

4 records   24ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx4.spamfri.dk 193.200.91.108 mx4.spamfri.dk AS62121 Christian Ebsen ApS
20 — mx2.spamfri.dk 193.200.91.109 mx2.spamfri.dk AS62121 Christian Ebsen ApS
30 — mx3.spamfri.dk 62.69.152.43
62.69.152.43		 43.34-46.152.69.62.in-addr.arpa
mx3.spamfri.dk		 AS47527 DLX A/S
AS47527 DLX A/S
40 — mx1.spamfri.dk 195.242.131.16 mx1.spamfri.dk AS62121 Christian Ebsen ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   113ms
TXT Record
v=spf1 +a +mx +ip4:193.200.90.102 include:_spf.e-studio.dk ~all

✉️ SPF#

PolicyRecord (42s.dk)
~all (soft fail) v=spf1 +a +mx +ip4:193.200.90.102 include:_spf.e-studio.dk ~all

📨 DMARC#

PolicyRecord (_dmarc.42s.dk)
p=none (monitor only) v=DMARC1; p=none;

📬 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 2026-10-11 07:13:40
www CNAME42s.dk (all on 42s.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#

4 records   46ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.spamfri.dk DANE-EE · SPKI · SHA-256 884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk DANE-EE · SPKI · SHA-256 6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk DANE-EE · SPKI · SHA-256 BBFB0694919290E5BC9D6E2C6F47D846…
SMTP _25._tcp.mx4.spamfri.dk DANE-EE · SPKI · SHA-256 4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC#

95ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

25ms
FieldValue
Serial2026061001
Primary NS (MNAME)ns1.e-studio.dk
Responsible (RNAME)hostmaster@mailrelay.e-studio.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-11 07:40:26
FieldValue
Registrardns.services ApS
Registered2014-09-15
Expires2027-09-30 (348d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
25ms
A
28ms
MX
24ms
AAAA
26ms
TXT
113ms
CAA
23ms
HTTPS
27ms
TLSA
46ms
SOA
25ms
MTA-STS
43ms
DNSSEC
95ms
SRV
0ms
Total
673ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-11 07:13:39 3436ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-07 20:18:04 635ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-29 17:05:37 569ms 3 NS 1 A 4 MX 🔓 Insecure
2026-08-16 13:34:07 3974ms 3 NS 1 A 4 MX 🔓 Insecure
2026-08-10 22:13:24 17431ms 3 NS 1 A 4 MX ❓ Unknown
2026-06-16 12:44:57 shown 673ms 3 NS 1 A 4 MX 🔓 Insecure
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