Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crbhub.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 21:14:45 UTC · ↺ Refresh
MX Hostnames
- crbhub.com
MX Priorities
- crbhub.com: 0
A / AAAA Records
- 46.17.90.17 ↩ cw03.crb-associates.com
Mail Server IPs
- 46.17.90.17 ↩ cw03.crb-associates.com
SOA Record
Raw SOA
ns2304.nameservers.co.uk hostmaster.crbhub.com 2025121903 3600 3600 1209600 86400
Primary NS (mname)
ns2304.nameservers.co.uk
Admin Email (rname)
hostmaster@crbhub.com
Serial
2025121903
Refresh
3600s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2304.nameservers.co.uk
ns2305.nameservers.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:46.17.90.17 ~all
📊 DNS lookups: 2/10
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:46.17.90.17 ~all
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