sterion.dk
Last scanned: 2026-06-29 02:52:39  ·  1617ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   37ms
NameserverIP addressesPTRASN / ISP
ns1-06.azure-dns.com 13.107.236.6
2603:1061:0:700::6		 ns1-06.azure-dns.com
ns1-06.azure-dns.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns2-06.azure-dns.net 150.171.21.6
2620:1ec:8ec:700::6		 ns2-06.azure-dns.net
ns2-06.azure-dns.net		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns3-06.azure-dns.org 204.14.183.6
2a01:111:4000:700::6		 ns3-06.azure-dns.org
ns3-06.azure-dns.org		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
ns4-06.azure-dns.info 208.84.5.6
2620:1ec:bda:700::6		 ns4-06.azure-dns.info
ns4-06.azure-dns.info		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
🌍 A Records1 records   31ms
IPTTLPTRASNISP / OrgCIDRCountryCity
80.248.138.31 3600s fw.sterion.dk AS216275 Netnoerden ApS 80.248.138.0/23 🇩🇰 Denmark —
📧 MX Records3 records   30ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mx.sterion.dk 80.248.138.32 mx.sterion.dk AS216275 Netnoerden ApS
20 43200s mx-backup.sterion.dk 80.248.138.33 mx-backup.sterion.dk AS216275 Netnoerden ApS
30 43200s backup.sterion.dk 109.59.181.186 109.59.181.186.mobile.3.dk AS44034 Hi3G Access AB
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoversterion.dk → 80.248.138.31
🔶 Autoconfigsterion.dk → 80.248.138.31
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   154ms
TXT Record
v=spf1 a:mail.sterion.dk a:mx.sterion.dk a:mx-backup.sterion.dk mx -all
✉️ SPF
PolicyRecord (sterion.dk)
-all (hard fail) v=spf1 a:mail.sterion.dk a:mx.sterion.dk a:mx-backup.sterion.dk mx -all
📨 DMARC
PolicyRecord (_dmarc.sterion.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:admin@sterion.dk; adkim=s; aspf=s;
📬 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
CNAME _acme-challenge.sterion.dk sterion.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC74ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA29ms
FieldValue
Serial1
Primary NS (MNAME)ns1-06.azure-dns.com
Responsible (RNAME)azuredns-hostmaster@microsoft.com
Refresh3600s
Retry300s
Expire2419200s
Minimum (neg-cache TTL)1s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
37ms
A
31ms
MX
30ms
AAAA
31ms
TXT
154ms
CAA
43ms
HTTPS
30ms
TLSA
63ms
SOA
29ms
MTA-STS
36ms
DNSSEC
74ms
SRV
44ms
Total
1617ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-29 02:52:39 1617ms 4 NS 1 A 3 MX 🔓 Insecure View
2026-06-23 02:57:33 2391ms 4 NS 1 A 3 MX 🔓 Insecure View
2026-06-17 20:55:20 1009ms 4 NS 1 A 3 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone