Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tdainc.ca
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 18:03:34 UTC · ↺ Refresh
MX Hostnames
- tdainc.ca
MX Priorities
- tdainc.ca: 0
A / AAAA Records
- 65.39.177.57 ↩ vps.globalservicehosting.com
Mail Server IPs
- 65.39.177.57 ↩ vps.globalservicehosting.com
SOA Record
Raw SOA
ns1.globalservicehosting.com sysadmin.4goodhosting.com 2026022401 3600 1800 1209600 86400
Primary NS (mname)
ns1.globalservicehosting.com
Admin Email (rname)
sysadmin@4goodhosting.com
Serial
2026022401
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.globalservicehosting.com
ns1.globalservicehosting.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:65.39.177.57 +ip4:65.39.177.58 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 +ip4:65.39.177.57 +ip4:65.39.177.58 -all
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