Domain Overview
DNS: ✓ 16d ago
Checker: ✓ 16d ago
51.com
No
None
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-25 19:35:47 UTC · ↺ Refresh
MX Hostnames
No MX records found.
MX Priorities
No priority data.
A / AAAA Records
- 42.4.56.186 (no PTR)
- 218.61.165.129 (no PTR)
- 36.249.93.227 (no PTR)
- 122.188.57.54 (no PTR)
CNAME → 51.com.cdn.dnsv1.com
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns3.dnsv4.com enterprise2dnsadmin.dnspod.com 1779689797 3600 180 1209600 180
Primary NS (mname)
ns3.dnsv4.com
Admin Email (rname)
enterprise2dnsadmin@dnspod.com
Serial
1779689797
Refresh
3600s
Retry
180s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns4.dnsv4.com
ns3.dnsv4.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
1 record- x3ckzxnfgjzmm53d068h6tpk8rjbwqwn
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