Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
ru.com
No
None
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-20 02:34:17 UTC · ↺ Refresh
MX Hostnames
MX Priorities
- : 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns0.centralnic.net hostmaster.centralnic.net 3000666100 900 1800 6048000 3600
Primary NS (mname)
ns0.centralnic.net
Admin Email (rname)
hostmaster@centralnic.net
Serial
3000666100
Refresh
900s
Retry
1800s
Expire
6048000s
Minimum TTL
3600s
Nameservers (NS)
ns3.centralnic.net
ns1.centralnic.net
ns4.centralnic.net
ns2.centralnic.net
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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- SPFv=spf1 -all
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