These interactive tools are provided free by Altius IT to help businesses assess and improve their security posture. Most run entirely in your browser. The domain and email lookup tools send only the domain or URL you enter to public DNS, RDAP, or certificate services to perform the check. Nothing you enter is stored.
Select a category below to access free, browser-based cybersecurity tools. No signup or installation required.
Test password strength, generate secure passwords and passphrases, and create cryptographic hashes.
Evaluate your security posture with risk quizzes, maturity scoring, and vulnerability calculators.
Track compliance readiness and compare major regulatory frameworks side by side.
Identify phishing red flags and estimate the financial impact of a data breach.
Grade a domain's SPF, DKIM, and DMARC, or validate and generate correct email authentication records.
Look up DNS records from two resolvers or a domain's registration data, with phishing red flags.
Check how well a website protects its visitors, with clear remediation guidance.
Calculate IPv4 subnets: network and broadcast addresses, host ranges, and binary breakdown.