gtholding.dk
Last scanned: 2026-08-01 10:26:58  ·  828ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   26ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   29ms
IPTTLPTRASNISP / OrgCIDRCountryCity
172.104.225.149 3600s home.it-solutions.dk AS63949 Akamai Connected Cloud 172.104.224.0/19 🇩🇪 Germany Frankfurt am Main
📧 MX Records1 records   27ms
PriorityTTLMail ServerIP addressesPTRASN
5 3600s mail.it-solutions.dk 139.144.70.51
2a01:7e01::f03c:93ff:fe9c:6837		 mail.it-solutions.dk
mail.it-solutions.dk		 AS63949 Akamai Connected Cloud
AS63949 Akamai Connected Cloud
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.it-solutions.dk → 139.144.70.51
🔶 Autoconfigmail.it-solutions.dk → 139.144.70.51
🔷 AAAA Records (IPv6)1 records   28ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:7e01::2000:34ff:feaa:1582 3600s — AS63949 Akamai Connected Cloud 2a01:7e00:0:0:0:0:0:0/30 🇩🇪 Germany Frankfurt am Main
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   135ms
TXT Record
v=DKIM1;k=rsa;t=s;s=email;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArcJSWI2obdDo4Xg080S/4xUr3OImXp2arOSmfm5LzJPsP+XMWo8+GtR5kmZ43Po343ht+mpEr1ATfv+nXoq5Fi8ZCmJzpr1Svv3BYcaM4gL7bldUeTEkh51buUQ0c/EjUWhwfiRqSzbfgj9FaCqFQu0gsNj8w9YuBNsXqOP/tc/WX+VS5/3nZdlgJU9QOwTFDOKaZARqn1wLnYj+Avkv/pQfUAUuLArITEWI1jOiVv0LBb/WGHc9RmfPbNGKxFLjKUsvcm7MOMlmsu+Hiv+sa+dgcRHcN2l26Yuw8AvJvGgoT6tJOB/LUmP+M9VMyl/QbWkrpT2er0E77GppRy9QywIDAQAB
v=spf1 mx a a:home.it-solutions.dk ip6:2a01:7e01::f03c:93ff:fe47:f6f1 ip4:172.105.85.39 ip4:212.237.179.26 ip4:139.144.70.51 ip4:217.61.236.115 ip4:185.134.30.91 include:spf.mandrillapp.com ~all
✉️ SPF
PolicyRecord (gtholding.dk)
~all (soft fail) v=spf1 mx a a:home.it-solutions.dk ip6:2a01:7e01::f03c:93ff:fe47:f6f1 ip4:172.105.85.39 ip4:212.237.179.26 ip4:139.144.70.51 ip4:217.61.236.115 ip4:185.134.30.91 include:spf.mandrillapp.com ~all
📨 DMARC
PolicyRecord (_dmarc.gtholding.dk)
p=quarantine v=DMARC1; p=quarantine;
📬 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)
🔐 DNSSEC48ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026073002
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
26ms
A
29ms
MX
27ms
AAAA
28ms
TXT
135ms
CAA
30ms
HTTPS
26ms
TLSA
102ms
SOA
0ms
MTA-STS
36ms
DNSSEC
48ms
SRV
49ms
Total
828ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-01 10:26:58 828ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-22 15:32:25 654ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-17 10:00:24 8967ms 4 NS 1 A 1 MX 🔒 Secure View
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