sat4u.dk
Last scanned: 2026-08-26 12:54:30  ·  615ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   48ms
NameserverIP addressesPTRASN / ISP
ns1.e-studio.dk 195.242.131.5
2001:67c:564:fffc::11		 ns1.e-studio.dk
ns1.e-studio.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
ns2.e-studio.dk 2a00:1b18:2:3::2
62.69.152.34		 ns2.e-studio.dk
ns2.e-studio.dk		 AS47527 DLX A/S
AS47527 DLX A/S
ns3.e-studio.dk 193.200.90.183
2001:67c:564:fffc::13		 ns3.e-studio.dk
ns3.e-studio.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
🌍 A Records1 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
5.186.54.156 3600s 5.186.54.156.static.fibianet.dk AS44869 FIBIA P/S 5.186.0.0/16 🇩🇰 Denmark Egå
📧 MX Records1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.sat4u.dk 193.200.90.180 web8.e-studio.dk AS62121 Christian Ebsen ApS
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover193.200.90.180
🔶 Autoconfig193.200.90.180
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   67ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 cpanelemaildiscovery.cpanel.net
📝 TXT Records1 records   157ms
TXT Record
v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk ~all
✉️ SPF
PolicyRecord (sat4u.dk)
~all (soft fail) v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk ~all
📨 DMARC
PolicyRecord (_dmarc.sat4u.dk)
p=reject v=DMARC1;p=reject; adkim=s; aspf=s
📬 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.sat4u.dk FIW2yUyX4rkeZh_eiKna_1YUSkRPcHEOd33YfHIdHSM
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC116ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026072403
Primary NS (MNAME)ns1.e-studio.dk
Responsible (RNAME)hostmaster@mailrelay.e-studio.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
48ms
A
43ms
MX
47ms
AAAA
44ms
TXT
157ms
CAA
63ms
HTTPS
51ms
TLSA
56ms
SOA
0ms
MTA-STS
59ms
DNSSEC
116ms
SRV
67ms
Total
615ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 12:54:30 615ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-07-24 21:55:30 9633ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-28 00:27:25 1190ms 3 NS 1 A 1 MX 🔓 Insecure View
2026-06-17 11:45:53 668ms 3 NS 1 A 1 MX 🔓 Insecure View
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