One public IP or domain
Resolve a target, review ASN and provider context, and check lightweight public reachability signals.
Open IP ScannerCyber entry point
Security starts here
Fast. Simple. Secure.
Monitoring activity...
Simple cyber checks
Choose your tool
Pick a check and get started in seconds.
Dark Web Leak Check
Check whether your email or credentials appear in known exposure data.
Check a Link
Check if a link is suspicious
Check a Website
See if a site looks safe
Check Your Website Security
Review basic exposure on your own website
Domain Exposure Map
Discover public subdomains linked to your domain
Test My Internet Speed
Check your connection speed
ISP / Provider Info
View your internet provider and connection details
Advanced Security Tools
More controlled checks for signed-in users
Advanced tools stay outside the public homepage lineup, but once you're signed in you can open IP Scanner, Port Scanner, and API Scanner from one clear place.
Open Advanced Security ToolsCurated common-port review
Check one public target against CSC's limited common-port set with grouped, readable results.
Open Port ScannerPublic API posture review
Review HTTPS, CORS, headers, and public docs exposure for one API target without destructive testing.
Open API ScannerPROFESSIONAL SECURITY
Need a deeper security review?
Get a professional cybersecurity assessment for your website, network, or security concerns.
Request My Security Review