Domain Overview
DNS: ✓ 13d ago
Checker: ✓ 13d ago
southwestplumbing.biz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 09:39:26 UTC · ↺ Refresh
MX Hostnames
- cell.siteprotector.us
MX Priorities
- cell.siteprotector.us: 10
A / AAAA Records
- 66.135.13.184 ↩ 66-135-13-184.constant.com
Mail Server IPs
- 38.127.92.131 ↩ cell.siteprotector.us
SOA Record
Raw SOA
ns8.crossedpair.com hostmaster.crossedpair.com 2019111882 28800 900 1209600 3600
Primary NS (mname)
ns8.crossedpair.com
Admin Email (rname)
hostmaster@crossedpair.com
Serial
2019111882
Refresh
28800s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns9.crossedpair.com
ns8.crossedpair.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com a:southwestplumbing.biz a:mx1.siteprotector.us include:online-send.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
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
2 records- SPFv=spf1 mx include:spf.protection.outlook.com a:southwestplumbing.biz a:mx1.siteprotector.us include:online-send.com -all
- apple-domain-verification=UdfTv9qJe2zDqVeD
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