jcbsn.dk

📜 Historical scan 2026-06-25 00:21:50  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jcbsn.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 14 November 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.198.14.52 is hosted by Google LLC (AS396982) in United States. Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is DNSSEC-signed and validates, 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   250ms

🌍 A Records#

1 records   262ms

📧 MX Records#

2 records   242ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx01.mail.icloud.com 17.42.251.62
17.42.251.62
17.42.251.62
17.56.9.31
17.56.9.31
17.57.152.5
17.57.152.5
17.57.152.5
17.57.152.5
17.57.154.33
17.57.154.33
17.57.155.25
17.57.155.25
17.57.156.30
17.57.156.30
mx02.mail.icloud.com
mx3.mail.icloud.com
mx01.mail.icloud.com
mx01.mail.icloud.com
mx02.mail.icloud.com
ic4-privaterelay.appleid.com
smtp1.ic4-privaterelay.appleid.com
mx02.mail.icloud.com
mx01.mail.icloud.com
mx01.mail.icloud.com
mx02.mail.icloud.com
mx01.mail.icloud.com
mx02.mail.icloud.com
mx02.mail.icloud.com
mx01.mail.icloud.com
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
10 3600s mx02.mail.icloud.com 17.42.251.62
17.42.251.62
17.42.251.62
17.56.9.31
17.56.9.31
17.57.152.5
17.57.152.5
17.57.152.5
17.57.152.5
17.57.154.33
17.57.154.33
17.57.155.25
17.57.155.25
17.57.156.30
17.57.156.30
mx01.mail.icloud.com
mx3.mail.icloud.com
mx02.mail.icloud.com
mx01.mail.icloud.com
mx02.mail.icloud.com
mx01.mail.icloud.com
mx02.mail.icloud.com
smtp1.ic4-privaterelay.appleid.com
ic4-privaterelay.appleid.com
mx01.mail.icloud.com
mx02.mail.icloud.com
mx01.mail.icloud.com
mx02.mail.icloud.com
mx02.mail.icloud.com
mx01.mail.icloud.com
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.
AS714 Apple Inc.

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   355ms
TXT Record
apple-domain=GzC5cer3FwACGMTY
v=spf1 include:icloud.com ~all

✉️ SPF#

PolicyRecord (jcbsn.dk)
~all (soft fail) v=spf1 include:icloud.com ~all

📨 DMARC#

PolicyRecord (_dmarc.jcbsn.dk)
p=reject v=DMARC1; p=reject; rua=mailto:nljd3vqr@ag.dmarcian-eu.com

📬 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 2026-10-15 15:55:15
www CNAMEjcbsn.dk (all on jcbsn.dk)
www vs bare domainSame network
jcbsn.dk: 104.198.14.52 (AS396982)
www.jcbsn.dk: 104.198.14.52 (AS396982)
WildcardNo
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

326ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

265ms
FieldValue
Serial2024081344
Primary NS (MNAME)ns1.dns.services
Responsible (RNAME)post@dns.services
Refresh10800s
Retry3600s
Expire1814400s
Minimum (neg-cache TTL)7200s

📋 Registration#

WHOIS fetched 2026-10-18 14:19:32
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2018-11-14
Expires2026-11-30 (42d)

🔗 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
loesholt.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
250ms
A
262ms
MX
242ms
AAAA
219ms
TXT
355ms
CAA
222ms
HTTPS
246ms
TLSA
637ms
SOA
265ms
MTA-STS
270ms
DNSSEC
326ms
SRV
268ms
Total
2475ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-29 23:01:31 647ms 3 NS 1 A 2 MX 🔒 Secure
2026-09-23 16:12:27 735ms 3 NS 1 A 2 MX 🔒 Secure
2026-09-11 04:13:31 1167ms 3 NS 1 A 2 MX 🔒 Secure
2026-08-28 04:34:23 620ms 3 NS 1 A 2 MX 🔒 Secure
2026-07-02 15:01:29 1258ms 3 NS 1 A 2 MX 🔒 Secure
2026-06-26 12:08:59 2187ms 3 NS 1 A 2 MX 🔒 Secure
2026-06-25 23:33:35 2008ms 3 NS 1 A 2 MX 🔒 Secure
2026-06-25 00:21:50 shown 2475ms 3 NS 1 A 2 MX 🔒 Secure
2026-06-24 02:37:59 1015ms 3 NS 1 A 2 MX 🔒 Secure
2026-06-18 02:36:09 1458ms 3 NS 1 A 2 MX 🔒 Secure
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