Domain Overview
DNS: ✓ 6h ago
Checker: ✓ 6h ago
clusterimpulsa.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-23 04:55:12 UTC · ↺ Refresh
MX Hostnames
- mail.clusterimpulsa.com
MX Priorities
- mail.clusterimpulsa.com: 0
A / AAAA Records
- 187.127.42.188 ↩ srv1775595.hstgr.cloud
Mail Server IPs
- 187.127.42.188 ↩ srv1775595.hstgr.cloud
SOA Record
Raw SOA
dns3.hostgator.com.br root.dns3.hostgator.com.br 2026071500 3600 1800 1209600 86400
Primary NS (mname)
dns3.hostgator.com.br
Admin Email (rname)
root@dns3.hostgator.com.br
Serial
2026071500
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns4.hostgator.com.br
dns3.hostgator.com.br
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:187.127.42.188 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx ip4:187.127.42.188 -all
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 · Customize →
See demo & docs
Deep verification
Full email verification for clusterimpulsa.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits