rg47c.dk
Last scanned: 2026-08-28 05:49:32  ·  535ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   41ms
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 Records
🌍
No A records found
📧 MX Records1 records   42ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mail.rg47c.dk 173.212.230.247 mail.rg47c.dk AS51167 Contabo GmbH
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.rg47c.dk → 173.212.230.247
🔶 Autoconfigmail.rg47c.dk → 173.212.230.247
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records3 records   71ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 10 443 mail.rg47c.dk
_imap._tcp 0 1 143 mail.rg47c.dk
_imaps._tcp 0 1 993 mail.rg47c.dk
📝 TXT Records2 records   166ms
TXT Record
google-site-verification=_qf0FM2eHwtFFNnFZTd5QALpW5Rq77BvKANDJfcPPoI
v=spf1 mx include:spf.smtp2go.com IP4:85.184.162.81 a:mail-out2.one.com ip4:173.249.57.219 ip4:173.212.230.247 -all
✉️ SPF
PolicyRecord (rg47c.dk)
-all (hard fail) v=spf1 mx include:spf.smtp2go.com IP4:85.184.162.81 a:mail-out2.one.com ip4:173.249.57.219 ip4:173.212.230.247 -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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.rg47c.dk AwXYvVJWak4ZgWBFOhMADC5wnHRU99rrVjbQsunz7lo
🔗 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
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2026081101
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
41ms
A
39ms
MX
42ms
AAAA
41ms
TXT
166ms
CAA
43ms
HTTPS
44ms
TLSA
52ms
SOA
0ms
MTA-STS
76ms
DNSSEC
84ms
SRV
71ms
Total
535ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 05:49:32 535ms 2 NS 0 A 1 MX 🔒 Secure View
2026-08-12 13:52:05 1287ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-17 17:37:53 8611ms 2 NS 0 A 1 MX 🔒 Secure View
2026-07-13 04:04:28 756ms 2 NS 0 A 1 MX 🔒 Secure View
2026-06-20 05:58:25 737ms 2 NS 0 A 1 MX 🔒 Secure View
2026-06-17 11:38:48 659ms 2 NS 0 A 1 MX 🔒 Secure View
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