t-systems.dk
Last scanned: 2026-08-28 10:35:20  ·  4935ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   74ms
NameserverIP addressesPTRASN / 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 Records1 records   107ms
IPTTLPTRASNISP / OrgCIDRCountryCity
80.158.66.24 40000s — AS34086 T-Systems International GmbH 80.158.64.0/21 🇩🇪 Germany —
📧 MX Records1 records   87ms
PriorityTTLMail ServerIP addressesPTRASN
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
ServiceCNAME / IP
🔷 Autodiscover185.23.218.9
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records2 records   157ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
_xmpp-server._tcp 10 10 5269 tsdkexpe01.t-systems.dk
📝 TXT Records2 records   295ms
TXT Record
MS=ms28868174
v=spf1 mx a:mx.visma.com -all
✉️ SPF
PolicyRecord (t-systems.dk)
-all (hard fail) v=spf1 mx a:mx.visma.com -all
📨 DMARC
PolicyRecord (_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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC149ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026021800
Primary NS (MNAME)pns.dtag.de
Responsible (RNAME)dns@telekom.de
Refresh10800s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
74ms
A
107ms
MX
87ms
AAAA
74ms
TXT
295ms
CAA
88ms
HTTPS
74ms
TLSA
4034ms
SOA
0ms
MTA-STS
122ms
DNSSEC
149ms
SRV
157ms
Total
4935ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 10:35:20 4935ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-27 06:55:19 6736ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-23 18:05:14 4737ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-22 18:09:50 1147ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 09:02:56 1049ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 22:38:28 5491ms 2 NS 1 A 1 MX 🔓 Insecure View
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