Parse Set-Cookie flags for Secure, HttpOnly, and SameSite on a live URL response.
- Free
- No signup
- Fast
- Privacy-friendly
Free · API · MCPToolYour platform
Use Cookie Security Analyzer three ways
The free Cookie Security Analyzer on this page works in your browser. The same workflow is available via REST API for apps and via MCP for Cursor, Claude, and other agents — one API key, one plan, one quota. This tool is part of the security-apis module under Security Tools.
- Free in browserUse Cookie Security Analyzer here — no account required.
- REST APICall from your server with
X-Api-Key. - MCP for agentsConnect Cursor or Claude to ToolYour MCP with the same key.
- 1. Get an API keySign in and open Dashboard → API Keys (works for REST and MCP).
- 2. Call or connectUse the REST API from your server, or paste the MCP URL into your agent config.
- 3. Same qualityOutput matches the free web tool across all three surfaces.
What is Cookie Security Analyzer?
Session cookies without Secure, HttpOnly, or SameSite leak risk on cross-site and XSS paths. ToolYour Cookie Security Analyzer fetches a URL and parses Set-Cookie headers for those flags, scoring each cookie. If the response sets no cookies, you get a clear note — try a login or app URL. REST/MCP: /api/v1/security-apis/cookie-security-analyzer.
What are common questions about Cookie Security Analyzer?
Why are there zero cookies?
Many marketing homepages set none. Analyze an authenticated or app endpoint that issues a session cookie.
Does this read cookie values from my browser?
No. It only inspects Set-Cookie headers returned when our servers fetch the URL you provide.
What are the key features of Cookie Security Analyzer?
Secure / HttpOnly / SameSite
Per-cookie issues list with pass/warn/fail severity.
How do you use Cookie Security Analyzer?
Pick a URL that sets cookies
Prefer login or app routes over a static landing page.
Fix missing flags
Add Secure on HTTPS, HttpOnly for session tokens, and an explicit SameSite.
Related checks
Combine with security headers and TLS tools. Mixed content issues remain under /digital-tools/mixed-content-checker.
Where do you browse more security tools tools?
- Security Tools tools
Browse the full Security Tools category on ToolYour.
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