ctr.dk
📜 Historical scan 2026-06-16 23:11:43  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   50ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com
ns2.simply.com
ns3.simply.com
ns4.simply.com
🌍 A Records1 records   45ms
📧 MX Records2 records   46ms
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records10 records   133ms
TXT Record
_globalsign-domain-verification=Bhl856-TcWoxhbk0nWuJixzmtCC7lRpDSXMN5h9jtm
_globalsign-domain-verification=GUX2Zb15jYC-7SL7cC7B4GxejuWWwhnXcaAPyjeWF9
_globalsign-domain-verification=lxYbTg25j7lTden6wWrE5B5_81yme-KEfFx7VOdxWs
ca3-a90ec8369ba64233b3897eca31c6d8c3
MS=ms25143600
MS=ms74080844
sophos-domain-verification=088ae3a66a5488e3bf88b477a57fdbaf9a1d87ec
sophos-domain-verification=573d397b1856d457ae8095567160ecc8b04f90feb0547c492b6facfb50be552a
sophos-domain-verification=8f2ad12d3d61a8727dc38c5ce8f543a40e334ca7
v=spf1 include:_spf.sndr.no include:_spf15860.spfprotect.com -all
✉️ SPF
PolicyRecord (ctr.dk)
-all (hard fail) v=spf1 include:_spf.sndr.no include:_spf15860.spfprotect.com -all
📨 DMARC
PolicyRecord (_dmarc.ctr.dk)
p=reject v=DMARC1; p=reject; rua=mailto:63da69c0507f6@dmarc.centerasecurity.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)
🔐 DNSSEC140ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA42ms
FieldValue
Serial2026061201
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
50ms
A
45ms
MX
46ms
AAAA
49ms
TXT
133ms
CAA
42ms
HTTPS
42ms
TLSA
160ms
SOA
42ms
MTA-STS
24ms
DNSSEC
140ms
SRV
0ms
Total
671ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 12:19:23 709ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-27 13:27:33 851ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-25 16:08:45 920ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-24 14:25:33 1232ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-23 04:54:06 6213ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-21 04:22:55 9924ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-20 03:50:51 16839ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-17 23:57:26 1360ms 4 NS 1 A 2 MX 🔒 Secure View
2026-08-15 13:17:43 1265ms 4 NS 1 A 2 MX 🔒 Secure View
2026-07-03 14:04:13 960ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-25 19:15:25 738ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-21 04:48:10 929ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-19 23:51:47 772ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-16 23:11:43 671ms 4 NS 1 A 2 MX 🔒 Secure View
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