t-systems.dk

📜 Historical scan 2026-06-23 18:05:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

t-systems.dk is a .dk domain served by 2 nameservers (ns1.telekom.net, pns.dtag.de). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.158.66.24 is hosted by T-Systems International GmbH (AS34086) in Germany. Mail is handled by mailin.ng.telekom.net. 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#

2 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.telekom.net	2003:180:a:1000::53 212.185.24.65	ns1.telekom.net ns1.telekom.net	AS3320 Deutsche Telekom AG AS3320 Deutsche Telekom AG
pns.dtag.de	194.25.0.125 2003:40:8000::100	pns.dtag.de pns.dtag.de	AS3320 Deutsche Telekom AG AS3320 Deutsche Telekom AG

🌍 A Records#

1 records 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.158.66.24	40000s	—	AS34086	T-Systems International GmbH	80.158.64.0/21	🇩🇪 Germany	—

📧 MX Records#

1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mailin.ng.telekom.net	3.126.204.238 3.71.246.67	ec2-3-126-204-238.eu-central-1.compute.amazonaws.com ec2-3-71-246-67.eu-central-1.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.23.218.9

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 128ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com
_xmpp-server._tcp	10	10	5269	tsdkexpe01.t-systems.dk

📝 TXT Records#

2 records 236ms

TXT Record
MS=ms28868174
v=spf1 mx a:mx.visma.com -all

✉️ SPF#

Policy	Record (t-systems.dk)
-all (hard fail)	v=spf1 mx a:mx.visma.com -all

📨 DMARC#

Policy	Record (_dmarc.t-systems.dk)
p=none (monitor only)	v=DMARC1;p=none;rua=mailto:dmarc@telekom.com;ruf=mailto:dmarc@telekom.com;

📬 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 2026-10-09 06:51:32

www	80.158.66.24 (AS34086) (address records, no CNAME)
www vs bare domain	Same network t-systems.dk: 80.158.66.24 (AS34086) www.t-systems.dk: 80.158.66.24 (AS34086)
Wildcard	No

🔎 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#

104ms

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

🏷️ SOA#

76ms

Field	Value
Serial	2026021800
Primary NS (MNAME)	pns.dtag.de
Responsible (RNAME)	dns@telekom.de
Refresh	10800s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

66ms

59ms

55ms

AAAA

73ms

TXT

236ms

CAA

59ms

HTTPS

78ms

TLSA

4033ms

SOA

76ms

MTA-STS

157ms

DNSSEC

104ms

SRV

128ms

Total

4737ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 22:27:21	4607ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 03:01:59	13462ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-28 10:35:20	4935ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 06:55:19	6736ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 18:05:14 shown	4737ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 18:09:50	1147ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 09:02:56	1049ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 22:38:28	5491ms	2 NS 1 A 1 MX	🔓 Insecure