coolhousing.dk
📜 Historical scan 2026-07-25 06:13:14  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   171ms
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   172ms
IPTTLPTRASNISP / OrgCIDRCountryCity
91.245.16.10 300s thp1.coolhousing.net AS6855 Slovak Telekom, a.s. 91.245.16.0/23 🇸🇰 Slovakia —
📧 MX Records1 records   164ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s posta.coolhousing.net 2a01:5f0:2::aabb
87.236.192.50		 posta.coolhousing.net
posta.coolhousing.net		 AS35592 Coolhousing s.r.o.
AS35592 Coolhousing s.r.o.
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverwww.coolhousing.net → 91.245.16.10
🔶 Autoconfigwww.coolhousing.net → 91.245.16.10
🔷 AAAA Records (IPv6)1 records   177ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:5f7:c001::aaaa 300s — AS6855 Slovak Telekom, a.s. 2a01:5f7:0:0:0:0:0:0/32 🇸🇰 Slovakia —
🔐 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
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.coolhousing.dk www.coolhousing.net
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC1502ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial1763668460
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
171ms
A
172ms
MX
164ms
AAAA
177ms
TXT
330ms
CAA
159ms
HTTPS
154ms
TLSA
289ms
SOA
0ms
MTA-STS
144ms
DNSSEC
1502ms
SRV
395ms
Total
3437ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-20 14:31:03 5432ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-25 06:13:14 3437ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-30 01:36:01 1530ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-20 02:08:53 4615ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-16 22:16:17 1476ms 3 NS 1 A 1 MX 🔒 Secure View
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