4co.dk
Last scanned: 2026-06-28 06:12:13  ·  1031ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   31ms
NameserverIP addressesPTRASN / ISP
ns.dandomain.dk 185.25.141.3
2a02:2339:4006:109::dd		 ns.dandomain.dk
ns.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.dandomain.dk 2a02:2339:1:108::dd:dd
91.197.248.66		 ns2.dandomain.dk
ns2.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records1 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.237.249.31 60s — AS48854 team.blue Denmark A/S 212.237.248.0/23 🇩🇰 Denmark —
📧 MX Records2 records   42ms
PriorityTTLMail ServerIP addressesPTRASN
0 60s 4co-dk.mail.protection.outlook.com — — —
10 60s mail.4co.dk 194.150.112.200 mailproxy1.dandomain.dk AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   48ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com
📝 TXT Records2 records   144ms
TXT Record
MS=ms34835744
v=spf1 include:spf.protection.outlook.com ip4:194.150.113.0/24 ip4:194.150.112.0/24 -all
✉️ SPF
PolicyRecord (4co.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com ip4:194.150.113.0/24 ip4:194.150.112.0/24 -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)
🔐 DNSSEC58ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA34ms
FieldValue
Serial2023091801
Primary NS (MNAME)ns.dandomain.dk
Responsible (RNAME)hostmaster@dandomain.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
31ms
A
40ms
MX
42ms
AAAA
35ms
TXT
144ms
CAA
54ms
HTTPS
43ms
TLSA
461ms
SOA
34ms
MTA-STS
40ms
DNSSEC
58ms
SRV
48ms
Total
1031ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-28 06:12:13 1031ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-26 09:45:16 1060ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-24 06:23:19 1135ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 06:37:41 2264ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-21 00:19:20 1082ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-16 12:36:25 1329ms 2 NS 1 A 2 MX 🔒 Secure View
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