holbergsmurerforretning.dk
Last scanned: 2026-08-28 11:34:03  ·  5188ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   56ms
NameserverIP addressesPTRASN / ISP
ns1.dnsservers.dk 2001:1448:0:a800::53
217.30.38.181		 authns1.ngdc.net
dns1.sentia.dk		 AS47292 Sentia Denmark A/S
AS47292 Sentia Denmark A/S
ns2.dnsservers.dk 2001:1448:0:a500::53
217.30.38.27		 authns2.ngdc.net
dns2.sentia.dk		 AS47292 Sentia Denmark A/S
AS47292 Sentia Denmark A/S
ns3.dnsservers.dk 2001:1448:0:a600::53
217.30.38.30		 —
dns3.sentia.dk		 AS47292 Sentia Denmark A/S
AS47292 Sentia Denmark A/S
🌍 A Records1 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.100.229.14 3600s — AS15395 Rackspace Ltd. 212.100.224.0/19 🇬🇧 United Kingdom —
📧 MX Records2 records   58ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.emailsrvr.com 184.106.54.1 mx1.emailsrvr.com AS19994 Rackspace Hosting
20 3600s mx2.emailsrvr.com 108.166.43.2
146.20.161.2
173.203.187.2
184.106.54.2		 mx2.emailsrvr.com
mx2.emailsrvr.com
mx2.emailsrvr.com
mx2.emailsrvr.com		 AS19994 Rackspace Hosting
AS27357 Rackspace Hosting
AS27357 Rackspace Hosting
AS19994 Rackspace Hosting
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover212.100.229.14
🔶 Autoconfig212.100.229.14
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC91ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2025071605
Primary NS (MNAME)ns2.dnsservers.dk
Responsible (RNAME)hostmaster@dnsservers.dk
Refresh900s
Retry600s
Expire86400s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
56ms
A
57ms
MX
58ms
AAAA
46ms
TXT
227ms
CAA
2042ms
HTTPS
2048ms
TLSA
253ms
SOA
0ms
MTA-STS
67ms
DNSSEC
91ms
SRV
4044ms
Total
5188ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 11:34:03 5188ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-08-27 09:08:21 2633ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-21 06:01:18 1175ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 13:13:13 272ms 0 NS 0 A 0 MX ❓ Unknown View
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