Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
subzero-houston.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 00:29:01 UTC · ↺ Refresh
MX Hostnames
- subzero-houston.com
- mail.subzero-houston.com
MX Priorities
- mail.subzero-houston.com: 0
- subzero-houston.com: 10
A / AAAA Records
- 70.40.222.133 ↩ box2137.bluehost.com
Mail Server IPs
- 70.40.222.133 ↩ box2137.bluehost.com
SOA Record
Raw SOA
ns1.bluehost.com root.box2137.bluehost.com 2024042900 86400 7200 3600000 300
Primary NS (mname)
ns1.bluehost.com
Admin Email (rname)
root@box2137.bluehost.com
Serial
2024042900
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns1.bluehost.com
ns2.bluehost.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:70.40.222.133 a mx include:websitewelcome.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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 ip4:70.40.222.133 a mx include:websitewelcome.com ~all
Full email verification for subzero-houston.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits