sprogcentre.dk
Last scanned: 2026-08-30 04:24:13  ·  1825ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   60ms
NameserverIP addressesPTRASN / ISP
ns1.krystal.uk 77.72.0.11 ns1.krystal.uk AS12488 Krystal Hosting Ltd
ns2.krystal.uk 139.162.230.184 ns2.krystal.uk AS63949 Akamai Connected Cloud
🌍 A Records1 records   61ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.72.2.88 14400s octopus-lon.krystal.uk AS12488 Krystal Hosting Ltd 77.72.0.0/21 🇬🇧 United Kingdom London
📧 MX Records2 records   65ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.krystal.uk 185.53.56.44
185.53.56.46		 mx1.strikemail.co.uk
mx1.strikemail.co.uk		 AS12488 Krystal Hosting Ltd
AS12488 Krystal Hosting Ltd
20 3600s mx2.krystal.uk 185.53.56.45
185.53.56.47		 mx2.strikemail.co.uk
mx2.strikemail.co.uk		 AS12488 Krystal Hosting Ltd
AS12488 Krystal Hosting Ltd
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   741ms
TXT Record
v=spf1 ip4:77.72.2.88 ip4:77.72.0.98 include:relay.k.io a mx ip4:77.72.6.12 ~all
✉️ SPF
PolicyRecord (sprogcentre.dk)
~all (soft fail) v=spf1 ip4:77.72.2.88 ip4:77.72.0.98 include:relay.k.io a mx ip4:77.72.6.12 ~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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.sprogcentre.dk qVU7iTY2g98f5Zyl5noU59rsI7JgDcH2t-SplxHAQUE
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC148ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026082901
Primary NS (MNAME)ns1.krystal.uk
Responsible (RNAME)admin@k-validator-octopus-lon.krystal.uk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
60ms
A
61ms
MX
65ms
AAAA
58ms
TXT
741ms
CAA
62ms
HTTPS
71ms
TLSA
317ms
SOA
0ms
MTA-STS
160ms
DNSSEC
148ms
SRV
227ms
Total
1825ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-30 04:24:13 1825ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-08-26 22:50:11 1349ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-08-16 00:01:34 4350ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-07-03 13:57:53 2905ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 13:56:47 1779ms 2 NS 1 A 2 MX 🔓 Insecure View
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