thebackoffice.dk
Last scanned: 2026-06-25 02:20:23  ·  950ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   61ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records1 records   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.142 3600s linux18.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records2 records   58ms
PriorityTTLMail ServerIP addressesPTRASN
8 3600s d333009.a.ess.de.barracudanetworks.com 18.185.115.250
18.185.115.251
18.185.115.252		 mail.ess.de.barracuda.com
mail.ess.de.barracuda.com
mail.ess.de.barracuda.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
16 3600s d333009.b.ess.de.barracudanetworks.com 18.185.115.250
18.185.115.251
18.185.115.252		 mail.ess.de.barracuda.com
mail.ess.de.barracuda.com
mail.ess.de.barracuda.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔶 Autoconfig185.21.41.142
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   237ms
TXT Record
v=spf1 include:spf.ess.de.barracudanetworks.com include:spf.protection.outlook.com include:_spf.mailsecuritygateway.com ip4:176.23.65.207 ip4:34.78.104.53 -all
✉️ SPF
PolicyRecord (thebackoffice.dk)
-all (hard fail) v=spf1 include:spf.ess.de.barracudanetworks.com include:spf.protection.outlook.com include:_spf.mailsecuritygateway.com ip4:176.23.65.207 ip4:34.78.104.53 -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)
🔐 DNSSEC89ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA45ms
FieldValue
Serial2024050605
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
61ms
A
46ms
MX
58ms
AAAA
46ms
TXT
237ms
CAA
102ms
HTTPS
58ms
TLSA
118ms
SOA
45ms
MTA-STS
47ms
DNSSEC
89ms
SRV
317ms
Total
950ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-25 02:20:23 950ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-18 05:37:39 607ms 2 NS 1 A 2 MX 🔒 Secure View
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