Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
yarn.cloudns.org
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-07-13 04:03:11 UTC · ↺ Refresh
MX Hostnames
- mail.duckmail.sbs
MX Priorities
- mail.duckmail.sbs: 10
A / AAAA Records
- 35.212.133.143 ↩ 143.133.212.35.bc.googleusercontent.com
Mail Server IPs
- 38.45.67.112 (no PTR)
SOA Record
Raw SOA
ns1.cloudns.net support.cloudns.net 2026031603 7200 1800 1209600 3600
Primary NS (mname)
ns1.cloudns.net
Admin Email (rname)
support@cloudns.net
Serial
2026031603
Refresh
7200s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.cloudns.net
ns4.cloudns.net
ns1.cloudns.net
ns3.cloudns.net
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
1 record- duckmail-verify-2b55d41951b5d858b220f215669cacdc
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 yarn.cloudns.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits