redfir.dk
Last scanned: 2026-07-04 20:42:08  ·  2538ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   59ms
NameserverIP addressesPTRASN / ISP
ns1.websupport.cz 2a10:bbc0::11
45.10.97.11		 ns1.websupport.eu
ns1.websupport.eu		 AS25234 ACTIVE 24, s.r.o.
AS25234 ACTIVE 24, s.r.o.
ns2.websupport.cz 185.71.159.12
2a02:250:3::12		 ns2.websupport.eu
ns2.websupport.eu		 AS25234 ACTIVE 24, s.r.o.
AS25234 ACTIVE 24, s.r.o.
ns3.websupport.eu 2a10:bbc0::13
45.10.97.13		 ns3.websupport.eu
ns3.websupport.eu		 AS25234 ACTIVE 24, s.r.o.
AS25234 ACTIVE 24, s.r.o.
🌍 A Records1 records   78ms
IPTTLPTRASNISP / OrgCIDRCountryCity
37.9.175.163 600s ing.r3.websupport.sk AS51013 WebSupport s.r.o. 37.9.168.0/21 🇸🇰 Slovakia —
📧 MX Records2 records   137ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mailin1.redfir.dk 37.9.169.112 mail-proxymxphy-6.websupport.sk AS51013 WebSupport s.r.o.
100 600s mailin2.redfir.dk 37.9.169.110 mail-proxymxphy-8.websupport.sk AS51013 WebSupport s.r.o.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverweb.prod.bts.websupport.sk → 37.9.169.172
🔶 Autoconfigweb.prod.bts.websupport.sk → 37.9.169.171
🔷 AAAA Records (IPv6)1 records   87ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a00:4b40:aaaa:2005::5 600s — AS51013 WebSupport s.r.o. 2a00:4b40:0:0:0:0:0:0/32 🇸🇰 Slovakia —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   315ms
TXT Record
spf2.0/pra a mx include:_sid.websupport.sk ?all
v=spf1 a mx include:_spf.websupport.sk ?all
✉️ SPF
PolicyRecord (redfir.dk)
?all (neutral) v=spf1 a mx include:_spf.websupport.sk ?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)
🔐 DNSSEC1337ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1783127605
Primary NS (MNAME)ns1.websupport.cz
Responsible (RNAME)admin@websupport.cz
Refresh7200s
Retry2048s
Expire1048576s
Minimum (neg-cache TTL)2560s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
59ms
A
78ms
MX
137ms
AAAA
87ms
TXT
315ms
CAA
98ms
HTTPS
109ms
TLSA
161ms
SOA
0ms
MTA-STS
206ms
DNSSEC
1337ms
SRV
193ms
Total
2538ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-04 20:42:08 2538ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-29 05:00:58 1171ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-24 11:29:51 1043ms 3 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 21:37:35 2814ms 3 NS 1 A 2 MX 🔓 Insecure View
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