host-open.dk
📜 Historical scan 2026-06-17 13:07:28  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   230ms
NameserverIP addressesPTRASN / ISP
ns1-05.azure-dns.com 13.107.236.5
2603:1061:0:700::5		 ns1-05.azure-dns.com
ns1-05.azure-dns.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns2-05.azure-dns.net 150.171.21.5
2620:1ec:8ec:700::5		 ns2-05.azure-dns.net
ns2-05.azure-dns.net		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns3-05.azure-dns.org 204.14.183.5
2a01:111:4000:700::5		 ns3-05.azure-dns.org
ns3-05.azure-dns.org		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns4-05.azure-dns.info 208.84.5.5
2620:1ec:bda:700::5		 ns4-05.azure-dns.info
ns4-05.azure-dns.info		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
🌍 A Records1 records   248ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.137.135.228 — — AS48854 team.blue Denmark A/S 94.137.128.0/20 🇩🇰 Denmark Bagsværd
📧 MX Records2 records   102ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.onlinemail.io 185.21.42.12 mx1.onlinemail.io AS48854 team.blue Denmark A/S
20 — mx2.onlinemail.io 46.36.208.16 mx2.onlinemail.io AS48854 team.blue Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   286ms
TXT Record
v=spf1 a include:spf.curanet.dk -all
✉️ SPF
PolicyRecord (host-open.dk)
-all (hard fail) v=spf1 a include:spf.curanet.dk -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)
🔐 DNSSEC351ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA74ms
FieldValue
Serial1
Primary NS (MNAME)ns1-05.azure-dns.com
Responsible (RNAME)azuredns-hostmaster@microsoft.com
Refresh3600s
Retry300s
Expire2419200s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
230ms
A
248ms
MX
102ms
AAAA
129ms
TXT
286ms
CAA
83ms
HTTPS
251ms
TLSA
369ms
SOA
74ms
MTA-STS
179ms
DNSSEC
351ms
SRV
0ms
Total
2493ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 03:46:35 737ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-08-26 21:29:45 793ms 4 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 13:07:28 2493ms 4 NS 1 A 2 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone