4b.dk
📜 Historical scan 2026-06-16 12:43:55  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   110ms
NameserverIP addressesPTRASN / ISP
ns.scannet2.dk — — —
ns2.scannet2.dk — — —
🌍 A Records1 records   104ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.43.11 — linux11.scannet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —
📧 MX Records1 records   111ms
PriorityTTLMail ServerIP addressesPTRASN
10 — 4b-dk.mail.protection.outlook.com 52.101.68.16
52.101.68.18
52.101.68.21
52.101.73.16		 mail-db4pr02cu00400.inbound.protection.outlook.com
mail-db4pr02cu00302.inbound.protection.outlook.com
mail-db4pr02cu00205.inbound.protection.outlook.com
mail-as2pr05cu00100.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records5 records   205ms
TXT Record
_globalsign-domain-verification=0c0HCdJDXk0hisMXTISSPPye-P9K26uE6OlQadXxK-
_globalsign-domain-verification=juivoWS4y5o27vxgZzwUDerzQPax6bfTmJLDmVn7eX
MS=ms37384634
P-b492TBVmzz
v=spf1 ip4:91.215.163.163 ip4:79.142.235.115 ip4:185.157.16.136 include:spf.protection.outlook.com include:spf.comendosystems.com include:spf.zentura.dk include:spf-de.emailsignatures365.com include:spf.permido.com -all
✉️ SPF
PolicyRecord (4b.dk)
-all (hard fail) v=spf1 ip4:91.215.163.163 ip4:79.142.235.115 ip4:185.157.16.136 include:spf.protection.outlook.com include:spf.comendosystems.com include:spf.zentura.dk include:spf-de.emailsignatures365.com include:spf.permido.com -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)
🔐 DNSSEC334ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA105ms
FieldValue
Serial2024090301
Primary NS (MNAME)ns.scannet2.dk
Responsible (RNAME)hostmaster@scannet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
110ms
A
104ms
MX
111ms
AAAA
106ms
TXT
205ms
CAA
101ms
HTTPS
106ms
TLSA
129ms
SOA
105ms
MTA-STS
30ms
DNSSEC
334ms
SRV
0ms
Total
942ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 21:02:59 925ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-29 10:20:36 727ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 20:53:16 1226ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 15:23:39 1694ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-20 21:51:17 1606ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-16 12:43:55 942ms 2 NS 1 A 1 MX 🔒 Secure View
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