ckb.dk

Records from scan: 2026-10-17 07:45:04  ·  2210ms total
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ckb.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 14 June 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.130.70 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records   46ms
NameserverIP addressesPTRASN / ISP
ns1.e-studio.dk 195.242.131.5
2001:67c:564:fffc::11		 ns1.e-studio.dk
ns1.e-studio.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
ns2.e-studio.dk 2a00:1b18:2:3::2
62.69.152.34		 ns2.e-studio.dk
ns2.e-studio.dk		 AS47527 DLX A/S
AS47527 DLX A/S
ns3.e-studio.dk 193.200.90.183
2001:67c:564:fffc::13		 ns3.e-studio.dk
ns3.e-studio.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS

🌍 A Records#

1 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.242.130.70 14400s web7.e-studio.dk AS62121 Christian Ebsen ApS 195.242.130.0/23 🇩🇰 Denmark —

📧 MX Records#

4 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
10 14400s mx4.spamfri.dk 193.200.91.108
2001:67c:564:fffd::4001		 mx4.spamfri.dk
mx4.spamfri.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
20 14400s mx2.spamfri.dk 193.200.91.109
2001:67c:564:fffd::2001		 mx2.spamfri.dk
mx2.spamfri.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
30 14400s mx3.spamfri.dk 2a00:1b18:2:3:fe::2
62.69.152.43		 mx3.spamfri.dk
mx3.spamfri.dk		 AS47527 DLX A/S
AS47527 DLX A/S
40 14400s mx1.spamfri.dk 195.242.131.16
2001:67c:564:fffd::1001		 mx1.spamfri.dk
mx1.spamfri.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover195.242.130.70
🔶 Autoconfig195.242.130.70

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   66ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records   143ms
TXT Record
v=spf1 +include:_spf.e-studio.dk -all

✉️ SPF#

PolicyRecord (ckb.dk)
-all (hard fail) v=spf1 +include:_spf.e-studio.dk -all

📨 DMARC#

PolicyRecord (_dmarc.ckb.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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#

checked 2026-10-17 07:45:04
www CNAMEckb.dk (all on ckb.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: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.ckb.dk INKV1b4IJ0bRIiyYDjzCywkTcleJ4TqFiPDIgRU4x6E

🔗 TLSA / DANE#

4 records   169ms
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#

128ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

24ms
FieldValue
Serial2026101701
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 2026-10-12 04:42:03
FieldValue
RegistrarONE.COM A/S
Registered2023-06-14
Expires2033-06-13 (2430d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
46ms
A
57ms
MX
44ms
AAAA
46ms
TXT
143ms
CAA
42ms
HTTPS
56ms
TLSA
169ms
SOA
24ms
MTA-STS
64ms
DNSSEC
128ms
SRV
66ms
Total
2210ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-17 07:45:04 shown 2210ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-16 07:31:42 3411ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-15 06:46:30 642ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-14 05:42:37 2502ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-13 05:03:42 991ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-12 04:16:56 460ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-11 02:33:47 693ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-10 02:07:08 2641ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-08 20:23:30 1168ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-07 20:21:55 894ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-06 20:21:16 572ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-05 18:42:25 666ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-04 18:41:31 871ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-03 18:36:32 1369ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-02 18:35:14 787ms 3 NS 1 A 4 MX 🔓 Insecure
2026-10-01 18:34:49 2706ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-30 18:15:27 786ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-29 18:06:14 662ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-28 21:55:52 736ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-27 21:42:21 695ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-26 21:26:09 783ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-25 21:17:31 1006ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-24 21:08:12 776ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-23 21:04:36 703ms 3 NS 1 A 4 MX 🔓 Insecure
2026-09-20 22:07:30 1204ms 3 NS 1 A 4 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone