kr4.dk

📜 Historical scan 2026-09-21 21:39:00  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kr4.dk is a .dk domain served by 2 nameservers (ns.brisson.dk, ns2.brisson.dk). It was registered on 23 October 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 40.115.1.231 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by mx.brisson.dk. 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   45ms
NameserverIP addressesPTRASN / ISP
ns.brisson.dk 80.209.68.5 80.209.68.5.static.fibianet.dk AS44869 FIBIA P/S
ns2.brisson.dk 80.209.68.3 80.209.68.3.static.fibianet.dk AS44869 FIBIA P/S

🌍 A Records#

1 records   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
40.115.1.231 86400s — AS8075 Microsoft Corporation 40.112.0.0/13 🇳🇱 The Netherlands Amsterdam

📧 MX Records#

1 records   43ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mx.brisson.dk 80.209.68.5 80.209.68.5.static.fibianet.dk AS44869 FIBIA P/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovermx.brisson.dk → 80.209.68.5
🔶 Autoconfigmx.brisson.dk → 80.209.68.5

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   237ms
TXT Record
v=spf1 mx include:_spf.brisson.dk -all

✉️ SPF#

PolicyRecord (kr4.dk)
-all (hard fail) v=spf1 mx include:_spf.brisson.dk -all

📨 DMARC#

PolicyRecord (_dmarc.kr4.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@lists.e11.dk; ruf=mailto:dmarc-forensic@lists.e11.dk

📬 MTA-STS#

203ms
CheckResult
Status🧪 Testing
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modetesting
Policy ID20260904144925Z
max_age86400s
Policy MXmx.brisson.dk

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:tlsrpt-reports@lists.e11.dk

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 00:04:19
www40.115.1.231 (AS8075) (address records, no CNAME)
www vs bare domainSame network
kr4.dk: 40.115.1.231 (AS8075)
www.kr4.dk: 40.115.1.231 (AS8075)
WildcardYes: any name under the zone resolves

✍️ 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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records   70ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.brisson.dk DANE-EE · SPKI · SHA-256 FA203DECA691B5F6574B2C65ED8634B1…

🔐 DNSSEC#

74ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026090402
Primary NS (MNAME)ns.brisson.dk
Responsible (RNAME)hostmaster@brisson.dk
Refresh86400s
Retry7200s
Expire2419200s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-14 06:51:44
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2003-10-23
Expires2027-10-31 (378d)

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

⏱️ Lookup Timing#

NS
45ms
A
42ms
MX
43ms
AAAA
35ms
TXT
237ms
CAA
40ms
HTTPS
32ms
TLSA
70ms
SOA
0ms
MTA-STS
203ms
DNSSEC
74ms
SRV
77ms
Total
817ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 00:04:19 877ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-30 19:52:40 1039ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-27 18:02:15 2846ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-24 13:43:21 696ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-21 21:39:00 shown 817ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-14 21:23:59 1820ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-05 15:38:52 757ms 2 NS 1 A 1 MX 🔓 Insecure
2026-08-26 18:04:53 554ms 2 NS 1 A 1 MX 🔓 Insecure
2026-08-10 23:49:25 3022ms 2 NS 1 A 1 MX 🔓 Insecure
2026-07-26 16:31:57 9489ms 2 NS 1 A 1 MX 🔓 Insecure
2026-07-25 16:05:01 868ms 2 NS 1 A 1 MX 🔓 Insecure
2026-06-30 06:08:24 573ms 2 NS 1 A 1 MX 🔓 Insecure
2026-06-29 14:57:58 806ms 2 NS 1 A 1 MX 🔓 Insecure
2026-06-17 13:25:30 1631ms 2 NS 1 A 1 MX 🔓 Insecure
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