# Website Security Auditor

> Free, in-depth website security audits. Grade any site's HTTPS, security headers, cookies, and DNS with the Website Security Auditor Security Score (A+ to F).

Website Security Auditor is a browser-based tool for developers, security engineers, and site owners. It runs 40+ parallel checks — HTTPS enforcement, TLS configuration, HTTP security headers (CSP, HSTS, Permissions-Policy, Referrer-Policy, COOP/COEP/CORP), cookie hygiene, DNS/email posture (SPF, DKIM, DMARC, MTA-STS, DNSSEC), and information disclosure — then produces a weighted score with per-finding fixes.

## Pages

- [Home](/): Run a free website security audit.
- [Tools](/tools): Free website security tools — headers checker, SSL tester, DNS lookup, cookie inspector, redirect tracer.
- [Guides](/guides): Long-form guides on HTTP security headers, HSTS, CSP, cookies, TLS and DNS.
- [Blog](/blog): Practical articles on website security.
- [Categories](/categories): Browse security topics.
- [Compare](/compare): Compare two websites' security posture side-by-side.
- [Learn](/learn): Intro to website security concepts.
- [About](/about): About the project.
- [API](/api): Developer API overview.
- [Contact](/contact): Get in touch.

## Optional

- [Search](/search): Search the site.
- [Privacy](/privacy): Privacy policy.
- [Terms](/terms): Terms of service.