redfir.dk

📜 Historical scan 2026-06-17 21:37:35 · ← 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. 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 182ms

Nameserver	IP addresses	PTR	ASN / 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 174ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
37.9.175.163	—	ing.r3.websupport.sk	AS51013	—	—	—	—

📧 MX Records#

2 records 172ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mailin1.redfir.dk	37.9.169.112	mail-proxymxphy-6.websupport.sk	AS51013 WebSupport s.r.o.
100	—	mailin2.redfir.dk	37.9.169.110	mail-proxymxphy-8.websupport.sk	AS51013 WebSupport s.r.o.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	web.prod.bts.websupport.sk → 37.9.169.171
🔶 Autoconfig	web.prod.bts.websupport.sk → 37.9.169.172

🔷 AAAA Records (IPv6)#

1 records 161ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:4b40:aaaa:2005::5	—	—	AS51013	—	—	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 370ms

TXT Record
spf2.0/pra a mx include:_sid.websupport.sk ?all
v=spf1 a mx include:_spf.websupport.sk ?all

✉️ SPF#

Policy	Record (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

www	37.9.175.163 (AS51013) (address records, no CNAME)
www vs bare domain	Same network redfir.dk: 37.9.175.163 2a00:4b40:aaaa:2005::5 (AS51013) www.redfir.dk: 37.9.175.163 (AS51013)
Wildcard	Yes: 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#

237ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

138ms

Field	Value
Serial	1778022755
Primary NS (MNAME)	ns1.websupport.cz
Responsible (RNAME)	admin@websupport.cz
Refresh	7200s
Retry	2048s
Expire	1048576s
Minimum (neg-cache TTL)	2560s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

182ms

174ms

172ms

AAAA

161ms

TXT

370ms

CAA

182ms

HTTPS

169ms

TLSA

302ms

SOA

138ms

MTA-STS

154ms

DNSSEC

237ms

SRV

381ms

Total

2814ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-08 07:46:09	2137ms	3 NS 1 A 2 MX	🔓 Insecure
2026-07-04 20:42:08	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 shown	2814ms	3 NS 1 A 2 MX	🔓 Insecure