challengecoin.dk
Last scanned: 2026-08-29 23:43:18  ·  1057ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   123ms
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   74ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.47.247.18 3600s one.com.webforward.g1i.one AS51468 One.com A/S 195.47.247.0/24 — —
📧 MX Records1 records   117ms
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)
🔐 DNSSEC276ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082805
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 RegistrationWHOIS fetched 2026-07-05 06:25:37
FieldValue
RegistrarONE.COM A/S
Registered2022-10-06
Expires2026-10-05 (31d)
📋 WHOIS
⏱️ Lookup Timing
NS
123ms
A
74ms
MX
117ms
AAAA
120ms
TXT
355ms
CAA
63ms
HTTPS
74ms
TLSA
98ms
SOA
0ms
MTA-STS
138ms
DNSSEC
276ms
SRV
144ms
Total
1057ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-29 23:43:18 1057ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-04 04:57:52 8596ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-05 06:23:14 2576ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-03 04:29:35 548ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 10:51:06 813ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-22 01:03:08 2440ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-21 13:23:34 1203ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-18 17:56:01 804ms 2 NS 1 A 4 MX 🔒 Secure View
2026-06-16 20:15:24 828ms 2 NS 1 A 4 MX 🔒 Secure View
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