Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gulickbros.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 04:11:43 UTC · ↺ Refresh
MX Hostnames
- mail.gulickbros.com
- mail.gulickbros.com
MX Priorities
- mail.gulickbros.com: 10
- mail.gulickbros.com: 20
A / AAAA Records
- 45.144.64.12 ↩ vm3341048.firstbyte.club
Mail Server IPs
- 45.144.64.12 ↩ vm3341048.firstbyte.club
SOA Record
Raw SOA
firstbytedns.net tech.firstbytedns.net 2025042100 3600 3600 604800 86400
Primary NS (mname)
firstbytedns.net
Admin Email (rname)
tech@firstbytedns.net
Serial
2025042100
Refresh
3600s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns3.firstbytedns.net
ns2.firstbytedns.net
ns1.firstbytedns.net
ns3.firstbytedns.ru
ns1.firstbytedns.ru
ns2.firstbytedns.ru
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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