rtsk.dk
Last scanned: 2026-07-04 09:33:19  ·  1464ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   232ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   242ms
IPTTLPTRASNISP / OrgCIDRCountryCity
62.198.37.182 3600s 0x3ec625b6.ejb.customer.dk.telia.net AS3308 Norlys Telco A/S 62.198.0.0/15 🇩🇰 Denmark Kolding
📧 MX Records1 records   209ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.rtsk.dk 62.198.37.182 0x3ec625b6.ejb.customer.dk.telia.net AS3308 Norlys Digital A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records3 records   349ms
TXT Record
google-site-verification=fvv89cBCmJHP_Cj8wCc4RoMjKGSQhIwCF5kDWkww0_0
google-site-verification=ybBD3H4Lfpuj4w7JbjXH9Z5FbwHOSrAdVdsS3Gy7l5w
v=spf1 mx a:mail.rtsk.dk ip4:62.198.37.182 -all
✉️ SPF
PolicyRecord (rtsk.dk)
-all (hard fail) v=spf1 mx a:mail.rtsk.dk ip4:62.198.37.182 -all
📨 DMARC
PolicyRecord (_dmarc.rtsk.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:dmarc@rtsk.dk; pct=100
📬 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)
🔐 DNSSEC361ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026070302
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
232ms
A
242ms
MX
209ms
AAAA
249ms
TXT
349ms
CAA
282ms
HTTPS
276ms
TLSA
357ms
SOA
0ms
MTA-STS
290ms
DNSSEC
361ms
SRV
275ms
Total
1464ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-04 09:33:19 1464ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-03 01:34:11 667ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-03 01:04:22 5966ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-27 20:55:02 1155ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-21 09:48:33 653ms 3 NS 1 A 0 MX 🔒 Secure View
2026-06-20 07:29:52 851ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-19 09:17:21 920ms 3 NS 0 A 0 MX 🔒 Secure View
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