rextech.dk
📜 Historical scan 2026-06-26 09:14:32  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   63ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records1 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
93.191.156.144 43200s linux259.unoeuro.com AS48854 team.blue Denmark A/S 93.191.152.0/21 🇩🇰 Denmark —
📧 MX Records1 records   80ms
PriorityTTLMail ServerIP addressesPTRASN
10 43200s mx.spamfilter.io 46.36.212.34
46.36.212.36
46.36.212.37
46.36.212.38
89.188.78.64
89.188.78.65
89.188.78.66
94.231.106.12		 node4.spamfilter.io
node8.spamfilter.io
node6.spamfilter.io
node7.spamfilter.io
node3.spamfilter.io
node9.spamfilter.io
node10.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscovermail.rextech.dk → 5.103.14.21
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   289ms
TXT Record
j2shjaseempi6n3pgffuingm1i
v=spf1 mx a include:web.shared.mysmtp.com ~all
✉️ SPF
PolicyRecord (rextech.dk)
~all (soft fail) v=spf1 mx a include:web.shared.mysmtp.com ~all
📨 DMARC
PolicyRecord (_dmarc.rextech.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:administrator@rextech.dk;
📬 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 / DANE1 records   79ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.spamfilter.io DANE-EE · SPKI · SHA-256 9A25F05F2E322DABDCC9B7A06AB47A2D…
🔐 DNSSEC96ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA35ms
FieldValue
Serial2026040401
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
63ms
A
40ms
MX
80ms
AAAA
47ms
TXT
289ms
CAA
33ms
HTTPS
82ms
TLSA
79ms
SOA
35ms
MTA-STS
47ms
DNSSEC
96ms
SRV
138ms
Total
740ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-16 00:01:19 4995ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-26 09:14:32 740ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 20:20:10 577ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-21 10:26:26 2182ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-18 07:01:30 2642ms 2 NS 1 A 1 MX 🔒 Secure View
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