Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
commercialhvacofhouston.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 22:51:36 UTC · ↺ Refresh
MX Hostnames
- mx2.improvmx.com
- smtp.google.com
- mx1.improvmx.com
MX Priorities
- mx1.improvmx.com: 10
- mx2.improvmx.com: 20
- smtp.google.com: 0
A / AAAA Records
- 172.67.183.128
- 104.21.80.137
- 2606:4700:3031::6815:5089
- 2606:4700:3032::ac43:b780
Mail Server IPs
- 35.181.18.45 ↩ ec2-35-181-18-45.eu-west-3.compute.amazonaws.com
- 13.37.195.136 ↩ ec2-13-37-195-136.eu-west-3.compute.amazonaws.com
- 15.236.236.160 ↩ ec2-15-236-236-160.eu-west-3.compute.amazonaws.com
- 2a05:d012:412:e201:88aa:e7b9:7a43:12d7 (no PTR)
- 2a05:d012:412:e202:f36:2c1f:1a49:d38a (no PTR)
- 2a05:d012:412:e203:373a:f51a:4a85:1d25 (no PTR)
- 13.36.222.39 ↩ ec2-13-36-222-39.eu-west-3.compute.amazonaws.com
- 13.36.107.63 ↩ ec2-13-36-107-63.eu-west-3.compute.amazonaws.com
- 15.236.61.92 ↩ ec2-15-236-61-92.eu-west-3.compute.amazonaws.com
- 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678 (no PTR)
- 2a05:d012:412:e202:e81e:cc44:3b53:8a3d
- 2a05:d012:412:e203:7e33:3d9c:28d7:ee20
- 64.233.180.26
- 142.251.111.27
- 64.233.180.27
- 142.251.16.27
- 142.251.111.26
- 2607:f8b0:4004:c19::1a
- 2607:f8b0:4004:c21::1a
- 2607:f8b0:4004:c19::1b
- 2607:f8b0:4004:c21::1b
SOA Record
Raw SOA
keenan.ns.cloudflare.com dns.cloudflare.com 2394630011 10000 2400 604800 1800
Primary NS (mname)
keenan.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2394630011
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
liberty.ns.cloudflare.com
keenan.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:spf.improvmx.com include:sendgrid.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:_spf.google.com include:spf.improvmx.com include:sendgrid.net ~all
- google-site-verification=8iNq3z2nQBo6ybKhUyFB37M1iXbNI87x_h0blC7bybE
- google-site-verification=fKvwYfnTJ5PLEjUdHHvZW7TGexKDMcEdImkHdZ8SeyY
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