Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firebike.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 17:22:24 UTC · ↺ Refresh
MX Hostnames
- mail.cpu-net.de
MX Priorities
- mail.cpu-net.de: 0
A / AAAA Records
- 194.126.206.92 ↩ ip194-126-206-92.pbiaas.com
Mail Server IPs
- 194.126.206.10 ↩ mail.cpu-net.de
SOA Record
Raw SOA
ns1.cpudns.de hostmaster.cpu-net.de 2026011204 7200 540 604800 3600
Primary NS (mname)
ns1.cpudns.de
Admin Email (rname)
hostmaster@cpu-net.de
Serial
2026011204
Refresh
7200s
Retry
540s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.cpudns.de
ns1.cpudns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 mx a ~all
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