kluwer.dk

📜 Historical scan 2026-06-17 21:41:37  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kluwer.dk is a .dk domain served by 2 nameservers (ns3.nordicway.dk, ns4.nordicway.dk). It was registered on 1 November 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 142.132.203.237 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by ASPMX.L.GOOGLE.COM, ALT1.ASPMX.L.GOOGLE.COM and 3 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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#

2 records   108ms

🌍 A Records#

1 records   110ms

📧 MX Records#

5 records   108ms

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   411ms
TXT Record
v=spf1 +a +mx +ip4:142.132.203.237 include:_spf.google.com include:relay.mailchannels.net ~all
v=spf1 +a +mx +ip4:142.132.203.237 include:relay.mailchannels.net ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)
PolicyRecord (kluwer.dk)
~all (soft fail) v=spf1 +a +mx +ip4:142.132.203.237 include:_spf.google.com include:relay.mailchannels.net ~all
~all (soft fail) v=spf1 +a +mx +ip4:142.132.203.237 include:relay.mailchannels.net ~all

📨 DMARC#

PolicyRecord (_dmarc.kluwer.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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 17:36:14
www CNAMEkluwer.dk (all on kluwer.dk)
www vs bare domainSame network
kluwer.dk: 142.132.203.237 (AS24940)
www.kluwer.dk: 142.132.203.237 (AS24940)
WildcardNo
Denial of existenceNSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — RSA · ~2048 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: 4/10 · policy: ~all

  • error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

212ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

107ms
FieldValue
Serial2026052801
Primary NS (MNAME)ns3.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-21 22:04:13
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2024-11-01
Expires2027-10-31 (374d)

🔗 Same registrant#

18 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
108ms
A
110ms
MX
108ms
AAAA
95ms
TXT
411ms
CAA
109ms
HTTPS
107ms
TLSA
277ms
SOA
107ms
MTA-STS
52ms
DNSSEC
212ms
SRV
114ms
Total
1166ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 01:16:02 2460ms 2 NS 1 A 5 MX 🔒 Secure
2026-09-27 05:03:00 866ms 2 NS 1 A 5 MX 🔒 Secure
2026-09-25 04:17:02 1013ms 2 NS 1 A 5 MX 🔒 Secure
2026-09-24 13:23:06 13438ms 4 NS 0 A 0 MX ❓ Unknown
2026-08-27 11:07:04 803ms 2 NS 1 A 5 MX 🔒 Secure
2026-08-26 10:52:42 13083ms 4 NS 0 A 0 MX ❓ Unknown
2026-08-26 08:53:32 1116ms 2 NS 1 A 5 MX 🔒 Secure
2026-08-26 03:31:03 6564ms 4 NS 0 A 0 MX ❓ Unknown
2026-08-07 04:23:08 1643ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-19 21:00:58 1485ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-19 07:26:38 5366ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-17 21:41:37 shown 1166ms 2 NS 1 A 5 MX 🔒 Secure
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