Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fkrieger.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 01:30:11 UTC · ↺ Refresh
MX Hostnames
- mx10.active24.eu
- mx20.active24.eu
MX Priorities
- mx20.active24.eu: 100
- mx10.active24.eu: 10
A / AAAA Records
- 81.95.100.139 ↩ ike.globenet.cz
- 2a02:4a8:ac24:112::100:139 ↩ ike.globenet.cz
Mail Server IPs
- 45.13.137.8 ↩ mx20.websupport.at
- 2a00:4b40:aaaa:2101:45:13:137:8 ↩ m1-u6-mx.websupport.sk
- 45.13.137.7 ↩ mx10.websupport.at
- 2a00:4b40:aaaa:2101:45:13:137:7 ↩ m1-u5-mx.websupport.sk
SOA Record
Raw SOA
ns1.websupport.cz admin.websupport.cz 1766419270 7200 2048 1048576 2560
Primary NS (mname)
ns1.websupport.cz
Admin Email (rname)
admin@websupport.cz
Serial
1766419270
Refresh
7200s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns3.websupport.eu
ns1.websupport.cz
ns2.websupport.cz
SPF Record
✓ Strict (-all)
v=spf1 a mx include:_spf.websupport.cz -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 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 a mx include:_spf.websupport.cz -all
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