Web Security Audit: Security Headers, SSL/TLS Certificates, and Threat Analysis
Published 2026-08-07 | Author: Sarah Connor | Category: dev-experience
An essential security guide to configuring HSTS, Content Security Policy (CSP), X-Frame-Options, and inspecting SSL certificates.
## Hardening Modern Web Applications Securing a web application requires more than installing an SSL/TLS certificate. Modern web security relies on declarative HTTP response headers that enforce strict browser policies. --- ## 1. Mandatory Web Security Response Headers - **Content-Security-Policy (CSP)**: Mitigates Cross-Site Scripting (XSS) by restricting where scripts and assets load from. - **Strict-Transport-Security (HSTS)**: Forces browsers to communicate exclusively over encrypted HTTPS connections. - **X-Frame-Options**: Prevents clickjacking attacks by controlling whether your page can be embedded in an iframe. - **X-Content-Type-Options**: Prevents MIME-type sniffing vulnerabilities. Run a comprehensive audit on your domain using our **Web Safety & Security Header Audit** tool to verify your server's security rating.Recommended Developer Tools
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