c4.dk

📜 Historical scan 2026-08-28 11:03:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c4.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.106 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by c4-tld.mx1-dk.mailanyone.net, c4-tld.mx2-dk.mailanyone.net and 1 more. The zone is DNSSEC-signed and validates, has no 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 67ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.scannet2.dk	185.25.141.9 2a02:2339:4006:10d::4171:4171	ns1.scannet.dk ns1.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.scannet2.dk	2a02:2339:1:112:0:5:1:b11 91.197.248.72	ns2.scannet.dk ns2.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.106	3600s	linux227.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

3 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	c4-tld.mx1-dk.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	3600s	c4-tld.mx2-dk.mailanyone.net	192.162.219.155 2001:978:2a01:0:192:162:217:4	mx41.electric.net —	AS16509 Amazon.com, Inc. AS174 Cogent Communications, LLC
30	3600s	c4-tld.mx3-dk.mailanyone.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 163ms

TXT Record
MS=ms68714917
v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all

✉️ SPF#

Policy	Record (c4.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all

📨 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 2026-10-14 18:30:26

www	93.191.156.106 (AS48854) (address records, no CNAME)
www vs bare domain	Same network c4.dk: 93.191.156.106 (AS48854) www.c4.dk: 93.191.156.106 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

98ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026050802
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

67ms

45ms

65ms

AAAA

76ms

TXT

163ms

CAA

66ms

HTTPS

60ms

TLSA

152ms

SOA

0ms

MTA-STS

85ms

DNSSEC

98ms

SRV

81ms

Total

1041ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-16 18:10:47	769ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-03 17:46:26	1034ms	2 NS 1 A 3 MX	🔒 Secure
2026-08-28 11:03:36 shown	1041ms	2 NS 1 A 3 MX	🔒 Secure
2026-08-26 18:34:45	911ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-27 14:44:22	923ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 18:44:48	546ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 18:41:10	772ms	2 NS 1 A 3 MX	🔒 Secure