preducation.dk
Last scanned: 2026-09-02 12:20:25  ·  9700ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   55ms
NameserverIP addressesPTRASN / ISP
ns1.serverhostgroup.com 104.236.38.47 ns1.serverhostgroup.com AS14061 DigitalOcean, LLC
ns2.serverhostgroup.com 46.101.214.99 ns2.serverhostgroup.com AS14061 DigitalOcean, LLC
ns3.serverhostgroup.com 141.164.45.163 ns3.serverhostgroup.com AS20473 The Constant Company, LLC
🌍 A Records1 records   136ms
IPTTLPTRASNISP / OrgCIDRCountryCity
57.129.84.98 14400s rs6-fra.serverhostgroup.com AS16276 OVH SAS 57.128.0.0/15 🇩🇪 Germany Frankfurt am Main
📧 MX Records1 records   69ms
PriorityTTLMail ServerIP addressesPTRASN
0 14400s preducation.dk 57.129.84.98 rs6-fra.serverhostgroup.com AS16276 OVH SAS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover57.129.84.98
🔶 Autoconfig57.129.84.98
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   540ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 cpanelemaildiscovery.cpanel.net
📝 TXT Records2 records   987ms
TXT Record
google-site-verification=IcL9zSbXknZ5vWlux6Z9oEHJjyb9Q-mfiSDnr75HzNo
v=spf1 +a +mx +ip4:57.129.84.98 include:relay.mailchannels.net ~all
✉️ SPF
PolicyRecord (preducation.dk)
~all (soft fail) v=spf1 +a +mx +ip4:57.129.84.98 include:relay.mailchannels.net ~all
📨 DMARC
PolicyRecord (_dmarc.preducation.dk)
p=quarantine v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
📬 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
TXT _acme-challenge.preducation.dk SN_2XDSPUiqtjM_sDRVFKripCAeJaE-c_iWew8XJqTE
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC9102ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026080901
Primary NS (MNAME)ns1.serverhostgroup.com
Responsible (RNAME)sh@chemicloud.com
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
55ms
A
136ms
MX
69ms
AAAA
140ms
TXT
987ms
CAA
316ms
HTTPS
56ms
TLSA
148ms
SOA
0ms
MTA-STS
169ms
DNSSEC
9102ms
SRV
540ms
Total
9700ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 12:20:25 9700ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-28 02:31:44 2604ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-26 02:07:56 9605ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-10 06:36:17 2259ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-20 05:20:24 975ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 14:38:34 1642ms 3 NS 1 A 1 MX 🔓 Insecure View
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