Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spk-koblenz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 14:17:37 UTC · ↺ Refresh
MX Hostnames
- mx-a.ktk.de
- mx-b.ktk.de
MX Priorities
- mx-a.ktk.de: 30
- mx-b.ktk.de: 30
A / AAAA Records
- 82.115.96.112 ↩ home.ktk.de
- 2a02:1628::c00a:0:0:0:112 ↩ home.ktk.de
Mail Server IPs
- 82.115.96.242 ↩ mx-a.ktk.de
- 2a02:1628::c004:0:0:0:242 ↩ mx-a.ktk.de
- 82.115.96.243 ↩ mx-b.ktk.de
- 2a02:1628::c004:0:0:0:243 ↩ mx-b.ktk.de
SOA Record
Raw SOA
ns-a.ktk.de hostmaster.noc.ktk.de 2019052105 3600 900 604800 3600
Primary NS (mname)
ns-a.ktk.de
Admin Email (rname)
hostmaster@noc.ktk.de
Serial
2019052105
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns-c.ktk.de
ns-b.ktk.io
ns-a.ktk.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
No TXT records found.
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