3tc.dk

📜 Historical scan 2026-06-26 09:24:58  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3tc.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 16 January 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

5 records   185ms
NameserverIP addressesPTRASN / ISP
ns1.gigahost.dk 46.183.139.31 — 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   282ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.183.138.100 3600s — AS47292 Sentia Denmark A/S 46.183.138.0/23 🇩🇰 Denmark —

📧 MX Records#

3 records   196ms
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
🔷 Autodiscover3tc.dk → 46.183.138.100
🔶 Autoconfig3tc.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   213ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 autodiscover.gigahost.dk

📝 TXT Records#

2 records   330ms
TXT Record
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk -all

✉️ SPF#

PolicyRecord (3tc.dk)
-all (hard fail) v=spf1 mx include:spf.gigahost.dk -all

📨 DMARC#

PolicyRecord (_dmarc.3tc.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#

latest probe, not this scan · checked 2026-10-15 16:45:11
www CNAME3tc.dk (all on 3tc.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.3tc.dk 3tc.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

268ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026062501
Primary NS (MNAME)ns1.gigahost.dk
Responsible (RNAME)hostmaster@3tc.dk
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-20 03:27:25
FieldValue
RegistrarGIGAHOST ApS
Registered2026-01-16
Expires2027-01-15 (86d)

🔗 Same registrant#

12 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
akupunktet.dkGIGAHOST ApS
fosyd.dkPunktum dk A/S (direct)
hjertestop-kursus.dkGIGAHOST ApS
hjertestopkursus.dkGIGAHOST ApS
ivip.dkGIGAHOST ApS
lærdetnu.dkGIGAHOST ApS
route-safe.dkPunktum dk A/S (direct)
routesafe.dkPunktum dk A/S (direct)
s-yndig.dkGIGAHOST ApS
secure4sure.dkPunktum dk A/S (direct)
ss-security.dkGIGAHOST ApS
webholm.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
185ms
A
282ms
MX
196ms
AAAA
278ms
TXT
330ms
CAA
43ms
HTTPS
32ms
TLSA
43ms
SOA
0ms
MTA-STS
291ms
DNSSEC
268ms
SRV
213ms
Total
889ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 16:45:10 977ms 5 NS 1 A 3 MX 🔓 Insecure
2026-10-09 01:31:12 2459ms 5 NS 1 A 3 MX 🔓 Insecure
2026-10-02 00:19:39 410ms 5 NS 1 A 3 MX 🔓 Insecure
2026-09-24 22:17:10 937ms 5 NS 1 A 3 MX 🔓 Insecure
2026-09-18 16:09:46 998ms 5 NS 1 A 3 MX 🔓 Insecure
2026-09-11 13:52:16 1559ms 5 NS 1 A 3 MX 🔓 Insecure
2026-09-04 11:35:59 1632ms 5 NS 1 A 3 MX 🔓 Insecure
2026-08-28 01:47:25 890ms 5 NS 1 A 3 MX 🔓 Insecure
2026-08-20 22:43:46 8055ms 5 NS 1 A 3 MX 🔓 Insecure
2026-08-14 16:04:45 4271ms 5 NS 1 A 3 MX 🔓 Insecure
2026-08-06 10:57:11 17103ms 5 NS 1 A 3 MX 🔓 Insecure
2026-08-01 23:19:58 8663ms 5 NS 1 A 3 MX 🔓 Insecure
2026-07-23 19:42:17 1064ms 5 NS 1 A 3 MX 🔓 Insecure
2026-07-17 15:17:53 2716ms 5 NS 1 A 3 MX 🔓 Insecure
2026-07-09 05:19:34 1443ms 5 NS 1 A 3 MX 🔓 Insecure
2026-07-03 10:46:57 927ms 5 NS 1 A 3 MX 🔓 Insecure
2026-06-27 03:47:34 876ms 5 NS 1 A 3 MX 🔓 Insecure
2026-06-26 17:47:22 971ms 5 NS 1 A 3 MX 🔓 Insecure
2026-06-26 09:24:58 shown 889ms 5 NS 1 A 3 MX 🔓 Insecure
2026-06-24 16:56:30 2047ms 5 NS 1 A 3 MX 🔓 Insecure
2026-06-20 22:45:53 1431ms 5 NS 1 A 3 MX 🔓 Insecure
2026-06-16 12:48:02 2680ms 5 NS 1 A 3 MX 🔓 Insecure
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