kr4.dk

📜 Historical scan 2026-09-30 19:52:40  ·  ← 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   36ms
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   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
40.115.1.231 86400s — AS8075 Microsoft Corporation 40.112.0.0/13 🇳🇱 The Netherlands Amsterdam

📧 MX Records#

1 records   42ms
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
🔷 Autodiscover40.115.1.231
🔶 Autoconfig40.115.1.231

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   81ms
ServicePriorityWeightPortTarget
_imaps._tcp 0 0 993 mail.kr4.dk

📝 TXT Records#

1 records   265ms
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#

220ms
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   151ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.brisson.dk DANE-EE · SPKI · SHA-256 FA203DECA691B5F6574B2C65ED8634B1…

🔐 DNSSEC#

61ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

42ms
FieldValue
Serial2026092300
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
36ms
A
38ms
MX
42ms
AAAA
48ms
TXT
265ms
CAA
33ms
HTTPS
48ms
TLSA
151ms
SOA
42ms
MTA-STS
220ms
DNSSEC
61ms
SRV
81ms
Total
1039ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 00:04:19 877ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-30 19:52:40 shown 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 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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