extern-it.dk

📜 Historical scan 2026-06-17 09:09:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

extern-it.dk is a .dk domain served by 3 nameservers (ns1.c-system.dk, ns2.c-system.dk, ns3.c-system.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.60.83 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by extern-it.dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

3 records 99ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.c-system.dk	—	—	—
ns2.c-system.dk	—	—	—
ns3.c-system.dk	—	—	—

🌍 A Records#

1 records 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.60.83	—	web01.c-system.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	—

📧 MX Records#

1 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	extern-it.dk.mail.protection.outlook.com	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 310ms

TXT Record
v=spf1 a:mailgw1.c-system.dk a:web01.c-system.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (extern-it.dk)
-all (hard fail)	v=spf1 a:mailgw1.c-system.dk a:web01.c-system.dk include:spf.protection.outlook.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 2026-10-08 15:07:43

www CNAME	extern-it.dk (all on extern-it.dk) → 49.12.60.83 (AS24940)
www vs bare domain	Same network extern-it.dk: 49.12.60.83 (AS24940) www.extern-it.dk: 49.12.60.83 (AS24940)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

184ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

60ms

Field	Value
Serial	1586853043
Primary NS (MNAME)	ns1.c-system.dk
Responsible (RNAME)	hostmaster@c-system.dk
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	38400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

99ms

64ms

AAAA

102ms

TXT

310ms

CAA

77ms

HTTPS

64ms

TLSA

1161ms

SOA

60ms

MTA-STS

74ms

DNSSEC

184ms

SRV

0ms

Total

2011ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 13:56:35	1010ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-19 00:29:27	1055ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-27 04:43:38	1268ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-21 17:26:59	1117ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 18:23:17	1995ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-20 01:29:10	4462ms	3 NS 1 A 1 MX	⚠️ Bogus
2026-06-17 09:09:47 shown	2011ms	3 NS 1 A 1 MX	🔓 Insecure