centurylink.dk
Last scanned: 2026-07-01 23:34:51  ·  4293ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   258ms
NameserverIP addressesPTRASN / ISP
authns1.qwest.net 2001:428::5
63.150.72.4		 authns1.qwest.net
authns1.centurylink.net		 AS209 CenturyLink Communications, LLC
AS209 CenturyLink Communications, LLC
authns2.qwest.net 2001:428::6
208.44.130.120		 authns2.qwest.net
authns2.lumen.tech		 AS209 CenturyLink Communications, LLC
AS209 CenturyLink Communications, LLC
🌍 A Records
🌍
No A records found
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   1354ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (centurylink.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.centurylink.dk)
p=reject v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.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)
🔐 DNSSEC287ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA241ms
FieldValue
Serial2201118000
Primary NS (MNAME)authns1.qwest.net
Responsible (RNAME)dns-admin@qwestip.net
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
258ms
A
259ms
MX
271ms
AAAA
262ms
TXT
1354ms
CAA
253ms
HTTPS
240ms
TLSA
212ms
SOA
241ms
MTA-STS
347ms
DNSSEC
287ms
SRV
342ms
Total
4293ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-01 23:34:51 4293ms 2 NS 0 A 0 MX 🔓 Insecure View
2026-06-16 20:06:18 1279ms 2 NS 0 A 0 MX 🔓 Insecure View
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