4euplus.dk
Last scanned: 2026-08-28 03:05:10  ·  3568ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   89ms
NameserverIP addressesPTRASN / ISP
cuce.ruk.cuni.cz 195.113.0.8
2001:718:1e03:1::8		 cuce.ruk.cuni.cz
cuce.ruk.cuni.cz		 AS2852 CESNET z.s.p.o.
AS2852 CESNET z.s.p.o.
david.ruk.cuni.cz 2001:718:1203:502::2
78.128.213.242		 david.ruk.cuni.cz
david.ruk.cuni.cz		 AS2852 CESNET z.s.p.o.
AS2852 CESNET z.s.p.o.
golias.ruk.cuni.cz 195.113.0.2
2001:718:1e03:1::2		 golias.ruk.cuni.cz
golias.ruk.cuni.cz		 AS2852 CESNET z.s.p.o.
AS2852 CESNET z.s.p.o.
🌍 A Records1 records   58ms
IPTTLPTRASNISP / OrgCIDRCountryCity
195.113.89.35 86400s tarantula.is.cuni.cz AS2852 CESNET z.s.p.o. 195.113.0.0/16 🇨🇿 Czechia Prague
📧 MX Records1 records   55ms
PriorityTTLMail ServerIP addressesPTRASN
20 86400s cuce.ruk.cuni.cz 195.113.0.8
2001:718:1e03:1::8		 cuce.ruk.cuni.cz
cuce.ruk.cuni.cz		 AS2852 CESNET z.s.p.o.
AS2852 CESNET z.s.p.o.
🔷 AAAA Records (IPv6)1 records   69ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2001:718:1e03:622::12 86400s tarantula.is.cuni.cz AS2852 CESNET z.s.p.o. 2001:718:0:0:0:0:0:0/29 🇨🇿 Czechia Prague
🔐 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 Records2 records   89ms
FlagsTagValue
0 iodef mailto:tcs@cuni.cz
0 issue harica.gr
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC107ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2025061700
Primary NS (MNAME)golias.ruk.cuni.cz
Responsible (RNAME)postmaster@dec59.ruk.cuni.cz
Refresh1800s
Retry60s
Expire3600000s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
89ms
A
58ms
MX
55ms
AAAA
69ms
TXT
360ms
CAA
89ms
HTTPS
77ms
TLSA
369ms
SOA
0ms
MTA-STS
112ms
DNSSEC
107ms
SRV
120ms
Total
3568ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 03:05:10 3568ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-08-27 07:53:10 12584ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-25 07:13:30 4995ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 12:39:04 1078ms 3 NS 1 A 1 MX 🔓 Insecure View
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