holdop.dk
Last scanned: 2026-06-26 02:52:58  ·  1269ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   116ms
NameserverIP addressesPTRASN / ISP
ns1.dnscluster.dk 2001:41d0:701:1100::7ec7
57.129.78.20		 vps-1448e198.vps.ovh.net
vps-1448e198.vps.ovh.net		 AS16276 OVH SAS
AS16276 OVH SAS
ns2.dnscluster.dk 212.95.58.14
2a00:c98:400f:104:1c00:a8ff:fe00:2ac		 ns2.dnscluster.dk
ns2.dnscluster.dk		 AS28753 Leaseweb Deutschland GmbH
AS28753 Leaseweb Deutschland GmbH
ns3.ns-infra.nl 213.184.84.70
2a09:3a00:4070::1		 —
—		 AS59795 PerfGrid
AS59795 PerfGrid
ns4.ns-infra.nl 2a06:a005:16d0:45::a
45.140.220.10		 ns4.dnscluster.dk
ns4.dnscluster.dk		 AS142594 SpeedyPage Ltd
AS142594 SpeedyPage Ltd
🌍 A Records1 records   70ms
IPTTLPTRASNISP / OrgCIDRCountryCity
213.184.84.10 3600s nlsh05.shared-infra.net AS59795 PerfGrid 213.184.84.0/23 🇳🇱 The Netherlands —
📧 MX Records2 records   115ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s in1.mail-infra.net 2a01:4f8:c012:7e77::1
49.12.11.203		 pmg1.h4r.eu
filter02.h4r.eu		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
20 3600s in2.mail-infra.net 2001:41d0:701:1100::a6bc
57.129.66.76		 filter04.h4r.eu
filter04.h4r.eu		 AS16276 OVH SAS
AS16276 OVH SAS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover213.184.84.10
🔶 Autoconfig213.184.84.10
🔷 AAAA Records (IPv6)1 records   133ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a09:3a00:4010::1 3600s — AS59795 PerfGrid 2a09:3a00:4000:0:0:0:0:0/40 🇳🇱 The Netherlands —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   562ms
TXT Record
v=spf1 +a +mx +include:spf-record.net ~all
✉️ SPF
PolicyRecord (holdop.dk)
~all (soft fail) v=spf1 +a +mx +include:spf-record.net ~all
📨 DMARC
PolicyRecord (_dmarc.holdop.dk)
p=none (monitor only) v=DMARC1;p=none;
📬 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
CNAME _acme-challenge.holdop.dk holdop.dk.acme-challenge.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC150ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA109ms
FieldValue
Serial2026062203
Primary NS (MNAME)ns1.dnscluster.dk
Responsible (RNAME)hostmaster@holdop.dk
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
116ms
A
70ms
MX
115ms
AAAA
133ms
TXT
562ms
CAA
60ms
HTTPS
107ms
TLSA
143ms
SOA
109ms
MTA-STS
112ms
DNSSEC
150ms
SRV
211ms
Total
1269ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-26 02:52:58 1269ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-23 15:21:55 3402ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-23 08:35:23 998ms 0 NS 0 A 0 MX ❓ Unknown View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone