ruhr.dk
Last scanned: 2026-08-25 16:49:24  ·  661ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   50ms
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   48ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.151.30.178 600s 185-151-30-178.ptr4.stackcp.net AS48254 20i Limited 185.151.28.0/22 🇬🇧 United Kingdom —
📧 MX Records1 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mx.stackmail.com 185.151.28.67 mx.stackmail.com AS48254 20i Limited
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.stackmail.com → 45.8.227.100
🔶 Autoconfig185.151.30.178
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   191ms
TXT Record
v=spf1 include:spf.stackmail.com a mx -all
✉️ SPF
PolicyRecord (ruhr.dk)
-all (hard fail) v=spf1 include:spf.stackmail.com a mx -all
📨 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)
🔐 DNSSEC84ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026032401
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
50ms
A
48ms
MX
39ms
AAAA
51ms
TXT
191ms
CAA
54ms
HTTPS
40ms
TLSA
176ms
SOA
0ms
MTA-STS
73ms
DNSSEC
84ms
SRV
69ms
Total
661ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 16:49:24 661ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 23:41:11 924ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 22:24:16 918ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-19 16:03:47 664ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 12:02:32 459ms 2 NS 1 A 1 MX 🔒 Secure View
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