w4.dk

Records from scan: 2026-10-13 12:41:22  ·  627ms total  ·  last checked 2026-10-19 19:08 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

w4.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 23 April 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 161.97.125.9 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mail.w4.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records   29ms
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
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   32ms
IPTTLPTRASNISP / OrgCIDRCountryCity
161.97.125.9 3600s vmi2570519.contaboserver.net AS51167 Contabo GmbH 161.97.64.0/18 🇫🇷 France Lauterbourg

📧 MX Records#

1 records   28ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.w4.dk 207.180.231.63 vmi2570520.contaboserver.net AS51167 Contabo GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   116ms
TXT Record
google-site-verification=rP1w2YbjO3jyuP5OOSg4ltbiqcHeSUGG25kA6v3UUzM
v=spf1 a mx ip4:207.180.231.63 -all

✉️ SPF#

PolicyRecord (w4.dk)
-all (hard fail) v=spf1 a mx ip4:207.180.231.63 -all

📨 DMARC#

PolicyRecord (_dmarc.w4.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:admin@w4.dk; ruf=mailto:admin@w4.dk; adkim=r; aspf=r;

📬 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#

checked 2026-10-13 12:41:22
www161.97.125.9 (AS51167) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
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

✍️ DKIM keys#

1 found
SelectorCNAMEKey
mail — RSA · ~4096 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

57ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

28ms
FieldValue
Serial2026101200
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-08 15:18:56
FieldValue
RegistrarSimply.com A/S
Registered2018-04-23
Expires2027-04-30 (192d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
29ms
A
32ms
MX
28ms
AAAA
33ms
TXT
116ms
CAA
37ms
HTTPS
29ms
TLSA
178ms
SOA
28ms
MTA-STS
53ms
DNSSEC
57ms
SRV
52ms
Total
627ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 12:41:22 shown 627ms 4 NS 1 A 1 MX 🔒 Secure
2026-10-01 19:59:58 598ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-29 19:49:01 693ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-26 09:01:26 1889ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-25 14:25:39 2681ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-17 23:01:34 921ms 4 NS 1 A 1 MX 🔒 Secure
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