4c-tech.dk

📜 Historical scan 2026-06-28 14:20:52  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4c-tech.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 September 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.137 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod14-cph3.one.com, mx2.pub.mailpod14-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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   49ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.213.137 3600s webcluster1.webpod14-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   42ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod14-cph3.one.com 185.10.9.212 mx1.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod14-cph3.one.com 185.10.9.213 mx2.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod14-cph3.one.com 185.10.9.214 mx3.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod14-cph3.one.com 185.10.9.215 mx4.pub.mailpod14-cph3.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover46.30.213.137
🔶 Autoconfig46.30.213.137

🔷 AAAA Records (IPv6)#

1 records   33ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:10c:49:506a:b84d:60e1 3600s — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   218ms
TXT Record
MS=598F695D2CB77E0F0B0FCF60C23A836D313CD54F

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 01:21:45
www46.30.213.139 2a02:2350:5:10c:59:dffe:2806:cd17 (AS51468) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

4 records   76ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 F9CAE2DF0FCB54F04130769823BED77A…

🔐 DNSSEC#

69ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

35ms
FieldValue
Serial2026061605
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-06 21:57:42
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2004-09-29
Expires2027-09-30 (346d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
49ms
A
38ms
MX
42ms
AAAA
33ms
TXT
218ms
CAA
36ms
HTTPS
51ms
TLSA
76ms
SOA
35ms
MTA-STS
45ms
DNSSEC
69ms
SRV
58ms
Total
817ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 01:21:44 1212ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-30 00:16:19 1421ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-31 18:40:34 563ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-18 09:03:22 8817ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-16 11:36:52 1098ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-04 21:15:33 1429ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-24 21:44:05 1090ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-18 08:55:03 5073ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-28 14:20:52 shown 817ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-28 12:53:57 9824ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-24 06:52:28 1132ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-24 00:48:10 1002ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 09:29:25 1405ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-16 13:14:06 1178ms 2 NS 1 A 4 MX 🔒 Secure
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