dotc.dk
📜 Historical scan 2026-07-30 10:50:13  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   30ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   2027ms
IPTTLPTRASNISP / OrgCIDRCountryCity
87.104.3.9 3598s 87.104.3.9.static.fibianet.dk AS44869 FIBIA P/S 87.104.0.0/18 🇩🇰 Denmark Sakskøbing
📧 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 Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 DMARC
PolicyRecord (_dmarc.dotc.dk)
p=reject v=DMARC1; p=reject; rua=mailto:admin@itsup.dk; ruf=mailto:admin@itsup.dk; adkim=s; aspf=s
📬 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)
🔐 DNSSEC2047ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026073001
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
30ms
A
2027ms
MX
4030ms
AAAA
2033ms
TXT
4147ms
CAA
2032ms
HTTPS
4029ms
TLSA
36ms
SOA
0ms
MTA-STS
38ms
DNSSEC
2047ms
SRV
4029ms
Total
4780ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 09:54:36 1413ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-25 17:10:23 619ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-24 11:17:12 10643ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-30 10:50:13 4780ms 2 NS 1 A 0 MX 🔒 Secure View
2026-07-02 16:40:46 9916ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 01:42:42 608ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-19 16:11:59 631ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 04:25:50 663ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 04:20:54 559ms 3 NS 1 A 1 MX 🔓 Insecure View
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