About Smart Domain Check
We provide free, privacy-conscious tools to help you and your team stay safe online. Our mission is to make the internet a safer place, one check at a time.
In an era of increasing online threats, knowing what's on the other side of a link or whether an email address is legitimate is crucial. Smart Domain Check was built to provide professional-grade security tools to everyone, for free.
What we offer
Link Safety Checker
Check any URL for malware and phishing using redirect resolution and Google Safe Browsing.
Bulk URL Checker
Check up to 10 links at once and export results as CSV for moderation or reports.
Email Validator
Validate syntax, MX records, and flag disposable or role-based addresses.
URL Unwrapper
See the full redirect chain and final destination of short links without clicking.
DNS Lookup
Look up A, AAAA, MX, TXT, CNAME, and NS records for any domain.
WHOIS Lookup
Find domain registration details, registrar, creation and expiry dates, and nameservers.
HTTP Header Checker
View response headers and security headers like CSP, HSTS, and X-Frame-Options.
SSL Certificate Checker
Check certificate details, issuer, expiry date, and whether the connection is secure.
Password Strength Checker
Check password strength in your browser. Nothing is sent to our servers.
Privacy and Data
Privacy isn't just a policy for us; it's the foundation of our tools. We do not store the URLs or email addresses you submit. Every check is ephemeral, processed in real-time, and forgotten immediately after the results are delivered to you.
Read our full privacy policy