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Nginx Config Analyzer

Analyse nginx.conf for syntax, security and performance issues.

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About the Nginx Config Analyzer

Paste an Nginx configuration to check brace balance and missing semicolons, then review server and location blocks for missing server_name, plain HTTP without a redirect, outdated SSL protocols, missing security headers, wide-open CORS, unsafe proxy_pass headers, autoindex and server_tokens exposure, and gzip or caching opportunities.

Popular uses

  • nginx config analyzer
  • nginx.conf linter
  • nginx syntax checker
  • nginx security headers
  • nginx performance

Examples

Missing header

server { listen 443 ssl; }

Output

YAMLWarning: no Strict-Transport-Security header

Keyboard shortcuts

  • Copy the main outputCtrl / ⌘ + Shift + C
  • Download the resultCtrl / ⌘ + S
  • Share this toolCtrl / ⌘ + Shift + S
  • Reset the inputsAlt + R
  • Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

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Version 1.0.0 · Updated 2026-08-19 · Runs entirely in your browser