ycost.dk
Last scanned: 2026-09-03 09:53:17  ·  489ms total
⬇ 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   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.211.38 600s domain-parking.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen
📧 MX Records1 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 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
✗ No DMARC record — mail spoofing not restricted
📬 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)
🔐 DNSSEC81ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026080801
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
43ms
MX
51ms
AAAA
51ms
TXT
165ms
CAA
34ms
HTTPS
61ms
TLSA
36ms
SOA
0ms
MTA-STS
55ms
DNSSEC
81ms
SRV
69ms
Total
489ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 09:53:17 489ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-09 11:51:01 607ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-12 13:59:12 8490ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 19:44:28 480ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 09:50:44 738ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-23 08:01:31 848ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 07:18:32 420ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-18 06:02:00 497ms 2 NS 1 A 0 MX ⚠️ Bogus View
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