Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ckns.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 05:56:19 UTC · ↺ Refresh
MX Hostnames
- mail.ckns.de
MX Priorities
- mail.ckns.de: 10
A / AAAA Records
- 116.203.17.36 ↩ web1.ckns.net
- 2a01:4f8:1c1c:a990::1 ↩ web1.ckns.net
Mail Server IPs
- 94.130.239.22 ↩ rz2-fw01.ckns.de
SOA Record
Raw SOA
cns1.alfahosting.info domain.ckns.de 2026021776 28800 7200 604800 86400
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
domain@ckns.de
Serial
2026021776
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
cns3.alfahosting.info
cns2.alfahosting.info
cns1.alfahosting.info
SPF Record
✓ Strict (-all)
v=spf1 mx a:mail.ckns.de ip4:116.203.17.36/32 ip4:94.130.239.22/32 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a:mail.ckns.de ip4:116.203.17.36/32 ip4:94.130.239.22/32 -all
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