rfr.dk
Last scanned: 2026-08-25 14:42:43  ·  2704ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   68ms
NameserverIP addressesPTRASN / ISP
ns1.dotserv.com 178.20.218.61
2a01:7cc0:101:ffff::51		 ns1.dotserv.com
ns1.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns1.dotserv.net 178.20.217.29
2a01:7cc0:101:ffff::52		 ns1.dotserv.net
ns1.dotserv.net		 AS21060 Atea A/S
AS21060 Atea A/S
ns2.dotserv.com 193.180.214.21 ns2.dotserv.com AS44803 Webdock.io ApS
ns2.dotserv.net 162.19.249.51
2001:41d0:701:1100::c89e		 ns2.dotserv.net
ns2.dotserv.net		 AS16276 OVH SAS
AS16276 OVH SAS
🌍 A Records1 records   59ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.20.216.97 14400s s0.enavn.dk AS21060 Atea A/S 178.20.216.0/23 🇩🇰 Denmark —
📧 MX Records1 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
0 14400s mail.rfr.dk 178.20.216.97
2a01:7cc0:101:ffff::1:12		 s0.enavn.dk
—		 AS21060 Atea A/S
AS21060 Atea A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover178.20.216.97
🔷 AAAA Records (IPv6)1 records   53ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:7cc0:101:ffff::1:12 14400s — AS21060 Atea A/S 2a01:7cc0:100:0:0:0:0:0/40 🇩🇰 Denmark —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   226ms
TXT Record
v=spf1 +a +mx include:_spf.dotserv.com -all
✉️ SPF
PolicyRecord (rfr.dk)
-all (hard fail) v=spf1 +a +mx include:_spf.dotserv.com -all
📨 DMARC
PolicyRecord (_dmarc.rfr.dk)
p=reject v=DMARC1; p=reject;
📬 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)
🔐 DNSSEC2062ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2025052201
Primary NS (MNAME)ns1.dotserv.com
Responsible (RNAME)hostmaster@dotserv.com
Refresh14400s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
68ms
A
59ms
MX
51ms
AAAA
53ms
TXT
226ms
CAA
80ms
HTTPS
52ms
TLSA
331ms
SOA
0ms
MTA-STS
90ms
DNSSEC
2062ms
SRV
97ms
Total
2704ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-25 14:42:43 2704ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-27 06:32:36 1680ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 12:39:12 3318ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-21 15:05:02 712ms 4 NS 1 A 1 MX 🔓 Insecure View
2026-06-18 05:15:21 942ms 4 NS 1 A 1 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone