Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hvk-online.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 18:30:29 UTC · ↺ Refresh
MX Hostnames
- office.flatbooster.com
MX Priorities
- office.flatbooster.com: 10
A / AAAA Records
- 85.220.231.174 ↩ rex28.flatbooster.com
Mail Server IPs
- 85.220.231.164 ↩ office.flatbooster.com
SOA Record
Raw SOA
ns1.ns-serve.net root.ns1.ns-serve.net 1689156190 10800 3600 604800 3600
Primary NS (mname)
ns1.ns-serve.net
Admin Email (rname)
root@ns1.ns-serve.net
Serial
1689156190
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.ns-serve.net
ns2.ns-serve.net
SPF Record
✓ Strict (-all)
v=spf1 mx a include:flatbooster.com -all
📊 DNS lookups: 3/10
✓ 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
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=K37GBOuYQv_fDNVOjOJxoXPSd8ZiAV0PODQn7xxD-X8
- SPFv=spf1 mx a include:flatbooster.com -all
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