redfir.dk

📜 Historical scan 2026-07-04 20:42:08  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

redfir.dk is a .dk domain served by 3 nameservers (ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 37.9.175.163 is hosted by WebSupport s.r.o. (AS51013) in Slovakia. Mail is handled by mailin1.redfir.dk, mailin2.redfir.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 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 Records#

1 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 Records#

2 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 Records#

2 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 08:53:46
www37.9.175.163 (AS51013) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ?all

  • warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

1337ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
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 yet — queued for a WHOIS lookup
📋 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
2026-09-08 07:46:09 2137ms 3 NS 1 A 2 MX 🔓 Insecure
2026-07-04 20:42:08 shown 2538ms 3 NS 1 A 2 MX 🔓 Insecure
2026-06-29 05:00:58 1171ms 3 NS 1 A 2 MX 🔓 Insecure
2026-06-24 11:29:51 1043ms 3 NS 1 A 2 MX 🔓 Insecure
2026-06-17 21:37:35 2814ms 3 NS 1 A 2 MX 🔓 Insecure
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