4cool.dk
Last scanned: 2026-08-12 23:40:02  ·  3048ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   221ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   216ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.231.109.10 3600s nt7.unoeuro.com AS48854 team.blue Denmark A/S 94.231.96.0/20 🇩🇰 Denmark —
📧 MX Records1 records   196ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover94.231.109.10
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   264ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records1 records   428ms
TXT Record
v=spf1 include:spf.simply.com -all
✉️ SPF
PolicyRecord (4cool.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.4cool.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
📬 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 / DANE2 records   180ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
🔐 DNSSEC396ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081100
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
221ms
A
216ms
MX
196ms
AAAA
269ms
TXT
428ms
CAA
202ms
HTTPS
223ms
TLSA
180ms
SOA
0ms
MTA-STS
293ms
DNSSEC
396ms
SRV
264ms
Total
3048ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-12 23:40:02 3048ms 4 NS 1 A 1 MX 🔒 Secure View
2026-07-18 06:19:24 8823ms 4 NS 1 A 1 MX 🔒 Secure View
2026-07-04 21:10:30 4104ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-24 09:27:15 637ms 4 NS 1 A 1 MX ⚠️ Bogus View
2026-06-20 06:56:20 512ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-19 21:29:11 483ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-16 12:46:23 581ms 4 NS 1 A 1 MX 🔒 Secure View
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