Free tools
Security tools for every business
Free, no sign-up, privacy-first. Built by the team behind SentinelHub — give them a try, then let us watch your back 24/7.
Email security checker
Check a domain's SPF, DMARC, DKIM, MX, MTA-STS and DNSSEC — and get a clear score with fixes.
Open tool →Password strength tester
See how strong a password really is and how long it would take to crack. 100% in your browser.
Open tool →Cyber-readiness check
A 2-minute self-assessment across MFA, backups, patching and more — with prioritised fixes.
Open tool →Phishing header analyzer
Paste an email's raw headers to spot spoofing, failed SPF/DKIM/DMARC and other red flags.
Open tool →