Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ksk-concept.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 00:04:24 UTC · ↺ Refresh
MX Hostnames
- exchange.network10.de
MX Priorities
- exchange.network10.de: 10
A / AAAA Records
- 217.151.158.236 ↩ kweb06.ksk-concept.de
- 2a00:e58:5::6 ↩ kweb06.ksk-concept.de
Mail Server IPs
- 217.151.158.230 ↩ exchange.network10.de
- 2a00:e58:5:f1::3 ↩ exchange.network10.de
SOA Record
Raw SOA
nsa4.schlundtech.de hostmaster.ksk-concept.de 2024032801 43200 7200 1209600 600
Primary NS (mname)
nsa4.schlundtech.de
Admin Email (rname)
hostmaster@ksk-concept.de
Serial
2024032801
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
nsb4.schlundtech.de
nsa4.schlundtech.de
nsd4.schlundtech.de
nsc4.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:217.151.158.230 ip4:217.151.158.233 ip4:217.151.158.236 ip6:2A00:E58:5:f1::3 ip6:2A00:E58:5::6 include:network10.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; aspf=s; adkim=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:217.151.158.230 ip4:217.151.158.233 ip4:217.151.158.236 ip6:2A00:E58:5:f1::3 ip6:2A00:E58:5::6 include:network10.de -all
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