5t.dk

📜 Historical scan 2026-08-31 00:09:13  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

5t.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.7a.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records   112ms
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 Records#

🌍
No A records found

📧 MX Records#

1 records   115ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.7a.dk 2a00:fd01:8146:3d00::30 — AS214875 Altibox Danmark AS

🔷 AAAA Records (IPv6)#

1 records   80ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a00:fd01:8146:3d00:215:5dff:fe02:6d04 600s — AS214875 Altibox Danmark AS 2a00:fd01:0:0:0:0:0:0/32 🇩🇰 Denmark Grindsted

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   1069ms
TXT Record
v=spf1 include:spf.mailjet.com include:spf.simply.com -all

✉️ SPF#

PolicyRecord (5t.dk)
-all (hard fail) v=spf1 include:spf.mailjet.com include:spf.simply.com -all

📨 DMARC#

PolicyRecord (_dmarc.5t.dk)
p=none (monitor only) v=DMARC1; p=none;

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 08:03:34
www188.228.54.119 (AS214875) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
CNAME _acme-challenge.5t.dk 1ec8c828-3428-49a2-964d-ae7cdb693bce.c-8a1f.tx.auth.certifytheweb.com
TXT 1ec8c828-3428-49a2-964d-ae7cdb693bce.c-8a1f.tx.auth.certifytheweb.com 4aTt7uUKOHJ3VsWZYnwQ1A32fNo6O9rFb85TNiMMHfE
TXT 1ec8c828-3428-49a2-964d-ae7cdb693bce.c-8a1f.tx.auth.certifytheweb.com F3DREd6RL7DD5F8kURAm2CGZWhp6sClEpf2pEQw_SDk

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

235ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

0ms
FieldValue
Serial2026083003
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup
📋 WHOIS#

⏱️ Lookup Timing#

NS
112ms
A
107ms
MX
115ms
AAAA
80ms
TXT
1069ms
CAA
72ms
HTTPS
122ms
TLSA
170ms
SOA
0ms
MTA-STS
171ms
DNSSEC
235ms
SRV
136ms
Total
1909ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-03 05:18:12 1395ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-01 06:24:15 1185ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-27 18:49:44 1223ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-07 03:26:12 2206ms 3 NS 1 A 1 MX 🔒 Secure
2026-08-31 00:09:13 shown 1909ms 3 NS 0 A 1 MX 🔒 Secure
2026-08-29 20:07:43 1508ms 3 NS 0 A 1 MX 🔒 Secure
2026-08-28 19:13:08 1295ms 3 NS 1 A 1 MX 🔒 Secure
2026-08-06 00:15:40 4679ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-25 10:47:47 1874ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-16 13:14:29 608ms 3 NS 1 A 1 MX 🔒 Secure
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