4ff.dk
Last scanned: 2026-08-27 12:02:01  ·  9821ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers5 records   55ms
NameserverIP addressesPTRASN / ISP
ns01.is.nl 213.75.63.33
2a02:a47f:ac:1::1153		 ns1.widexs.nl
ns11.kpn.net		 AS1136 KPN B.V.
AS1136 KPN B.V.
ns02.is.nl 213.75.63.68
2a02:a47f:ac:1::1253		 ns2.widexs.net
ns02.is.nl		 AS1136 KPN B.V.
AS1136 KPN B.V.
ns03.is.nl 213.75.63.34
2a02:a47f:ac:1::1353		 ns03.is.nl
ns03.is.nl		 AS1136 KPN B.V.
AS1136 KPN B.V.
ns13.kpn.net 213.75.63.34
2a02:a47f:ac:1::1353		 ns03.is.nl
ns03.is.nl		 AS1136 KPN B.V.
AS1136 KPN B.V.
ns3.kpn.net 194.151.228.42
2a02:a47f:ac:1::353		 ns3.kpn.net
ns3.kpn.net		 AS1136 KPN B.V.
AS1136 KPN B.V.
🌍 A Records1 records   81ms
IPTTLPTRASNISP / OrgCIDRCountryCity
82.201.43.68 86400s jamweb-003.ux.is.nl AS15879 Vancis IP B.V. 82.201.0.0/17 🇳🇱 The Netherlands Rotterdam
📧 MX Records1 records   57ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s edge.werkonline.nu 82.201.57.4 edge004b-z03.hypergrid.nl AS15879 Vancis IP B.V.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover82.201.43.68
🔶 Autoconfig82.201.43.68
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records
📝
No TXT records found
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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)
🔐 DNSSEC9104ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2022120605
Primary NS (MNAME)ns3.kpn.net
Responsible (RNAME)zonemaster@kpn.com
Refresh10800s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
55ms
A
81ms
MX
57ms
AAAA
75ms
TXT
367ms
CAA
88ms
HTTPS
55ms
TLSA
122ms
SOA
0ms
MTA-STS
113ms
DNSSEC
9104ms
SRV
131ms
Total
9821ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 12:02:01 9821ms 5 NS 1 A 1 MX 🔓 Insecure View
2026-06-23 01:18:55 1193ms 5 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 12:37:42 2773ms 5 NS 1 A 1 MX 🔓 Insecure View
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