Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rdbcontractorsinc.com
No
None
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 20:29:41 UTC · ↺ Refresh
MX Hostnames
No MX records found.
MX Priorities
No priority data.
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns1.dreamhost.com hostmaster.dreamhost.com 2025110100 20339 600 1814400 300
Primary NS (mname)
ns1.dreamhost.com
Admin Email (rname)
hostmaster@dreamhost.com
Serial
2025110100
Refresh
20339s
Retry
600s
Expire
1814400s
Minimum TTL
300s
Nameservers (NS)
ns3.dreamhost.com
ns2.dreamhost.com
ns1.dreamhost.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
No TXT records found.
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