coretools.dk
Last scanned: 2026-07-16 14:14:48  ·  16692ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   67ms
🌍 A Records1 records   82ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.8.38.10 3600s AS48854 team.blue Denmark A/S 193.8.38.0/24 🇩🇰 Denmark
📧 MX Records2 records   59ms
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig193.8.38.10
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   192ms
TXT Record
v=spf1 a include:spf.curanet.dk include:spf.simply.com -all
✉️ SPF
PolicyRecord (coretools.dk)
-all (hard fail) v=spf1 a include:spf.curanet.dk include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.coretools.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)
🔐 DNSSEC149ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA29ms
FieldValue
Serial2025101404
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
67ms
A
82ms
MX
59ms
AAAA
89ms
TXT
192ms
CAA
51ms
HTTPS
55ms
TLSA
107ms
SOA
29ms
MTA-STS
71ms
DNSSEC
149ms
SRV
134ms
Total
16692ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-16 14:14:48 16692ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-24 04:18:10 4610ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-21 16:40:18 922ms 4 NS 1 A 2 MX 🔒 Secure View
2026-06-16 22:26:53 612ms 4 NS 1 A 2 MX 🔒 Secure View
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