r4k.dk

Records from scan: 2026-10-22 05:48:58  ·  2061ms total
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

r4k.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 25 September 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 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#

5 records   84ms
NameserverIP addressesPTRASN / ISP
ns1.gigahost.dk 46.183.139.31 ns1.gigahost.dk AS47292 Sentia Denmark A/S
ns2.gigahost.dk 46.183.139.222 web22.gigahost.dk AS47292 Sentia Denmark A/S
ns3.gigahost.dk 71.19.249.71 ns3.gigahost.dk AS11831 eSecureData
ns4.gigahost.dk 51.79.215.130 ns4.gigahost.dk AS16276 OVH SAS
ns5.gigahost.dk 77.74.192.83 ns5.gigahost.dk AS42831 UK Dedicated Servers Limited

🌍 A Records#

1 records   474ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.183.138.100 3600s — AS47292 Sentia Denmark A/S 46.183.138.0/23 🇩🇰 Denmark —

📧 MX Records#

3 records   348ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.gigahost.dk 46.183.139.11 mx1.gigahost.dk AS47292 Sentia Denmark A/S
10 3600s mx2.gigahost.dk 46.183.139.12 mx2.gigahost.dk AS47292 Sentia Denmark A/S
10 3600s mx3.gigahost.dk 46.183.139.13 mx3.gigahost.dk AS47292 Sentia Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverr4k.dk → 46.183.138.100
🔶 Autoconfigr4k.dk → 46.183.138.100

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   569ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 autodiscover.gigahost.dk

📝 TXT Records#

2 records   819ms
TXT Record
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk -all

✉️ SPF#

PolicyRecord (r4k.dk)
-all (hard fail) v=spf1 mx include:spf.gigahost.dk -all

📨 DMARC#

PolicyRecord (_dmarc.r4k.dk)
p=reject v=DMARC1; p=reject;

📬 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 2026-10-22 05:48:58
www CNAMEr4k.dk (all on r4k.dk)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
CNAME _acme-challenge.r4k.dk r4k.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

590ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

313ms
FieldValue
Serial2026102201
Primary NS (MNAME)ns1.gigahost.dk
Responsible (RNAME)hostmaster@r4k.dk
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-22 06:03:47
FieldValue
RegistrarGIGAHOST ApS
Registered2026-09-25
Expires2027-09-24 (336d)

🔗 Same registrant#

19 domains

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
bcl.dkGIGAHOST ApS
bornecancerlobet.dkGIGAHOST ApS
børnecancerløb.dkGIGAHOST ApS
børnecancerløbet.dkGIGAHOST ApS
charityadventures.dkGIGAHOST ApS
charityauctions.dkGIGAHOST ApS
cphmaraton.dkGIGAHOST ApS
eventyrsguiden.dkPunktum dk A/S (direct)
internettilfirmaet.dkGIGAHOST ApS
internettilvirksomheden.dkGIGAHOST ApS
jakobbay.dkPunktum dk A/S (direct)
kbhmarathon.dkGIGAHOST ApS
løbforensag.dkPunktum dk A/S (direct)
megarun.dkGIGAHOST ApS
runify.dkPunktum dk A/S (direct)
smartmi.dkGIGAHOST ApS
sådanerreglerne.dkPunktum dk A/S (direct)
træningsforum.dkGIGAHOST ApS
tændetlys.dkGIGAHOST ApS
📋 WHOIS#

⏱️ Lookup Timing#

NS
84ms
A
474ms
MX
348ms
AAAA
474ms
TXT
819ms
CAA
512ms
HTTPS
458ms
TLSA
155ms
SOA
313ms
MTA-STS
591ms
DNSSEC
590ms
SRV
569ms
Total
2061ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-22 05:48:58 shown 2061ms 5 NS 1 A 3 MX 🔓 Insecure
2026-10-15 16:30:01 1461ms 5 NS 1 A 3 MX 🔓 Insecure
2026-10-11 04:20:27 871ms 5 NS 1 A 3 MX 🔓 Insecure
2026-10-09 18:48:35 215ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-08 12:42:43 965ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-07 12:20:14 237ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-06 11:28:12 600ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-05 10:18:56 224ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-04 10:06:11 245ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-03 10:04:45 588ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-02 10:03:00 233ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-01 09:57:09 254ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-30 09:54:56 255ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-29 09:46:24 236ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-28 09:22:37 221ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-27 09:02:56 218ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-26 08:47:44 220ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-10 01:06:07 723ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-08 22:51:38 647ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-06 09:23:39 661ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-04 21:00:11 1932ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-03 00:41:15 533ms 1 NS 0 A 0 MX ❓ Unknown
2026-06-23 15:19:21 2239ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-22 15:37:10 337ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-21 05:15:41 617ms 0 NS 0 A 0 MX ❓ Unknown
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