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Decode a JWT and statically review its header and claims.
Parse a CVSS 3.1 or 4.0 vector, expand every metric in plain English, and compute the 3.1 base score.
Paste raw email headers to reconstruct the delivery hop path and read SPF, DKIM, and DMARC results.
Master web application security testing with this comprehensive guide. Learn testing methodologies, OWASP best practices, essential tools (Burp Suite, ZAP, Nmap), vulnerability assessment tec
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Master web application security with our comprehensive guide to the OWASP Top 10 2025. Learn about the most critical security risks, real-world examples, prevention techniques, and testing me
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Paste HTTP response headers and get a graded report on HSTS, CSP, X-Frame-Options, and more.
Break a User-Agent string into browser, version, operating system, and device — and spot bots.