Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
comfortmastersdfw.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 07:43:11 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- aspmx3.googlemail.com
- alt1.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 40
- aspmx3.googlemail.com: 50
- aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 20
- alt1.aspmx.l.google.com: 30
A / AAAA Records
- 99.83.157.227 ↩ aa1a08f2413674d23.awsglobalaccelerator.com
Mail Server IPs
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 64.233.180.26 ↩ pe-in-f26.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
SOA Record
Raw SOA
sterling.ns.cloudflare.com dns.cloudflare.com 2398545374 10000 2400 604800 1800
Primary NS (mname)
sterling.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398545374
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sterling.ns.cloudflare.com
ziggy.ns.cloudflare.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
5 records- ca3-2d3d6bd5bb794402b355a3fb31c4486b
- ca3-d6d6b1b7be3547d781dde30727d30141
- google-site-verification=89w4307jQ7emnzH3Nc35fkgbhiX3Se8fNPxBEtNi67s
- google-site-verification=Kop2qkEeCCXyetwxPY6qbZKkCsYBJpog54ZZHhhsTP8
- ku68o1i308g7n5tlb0fbudrime
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for comfortmastersdfw.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits