How to Check if Your Website Is Secure

Why It Matters

Every day, thousands of websites are compromised because of simple, preventable issues. Expired SSL certificates, missing security headers, or leaked server information give attackers an easy way in. The problem is that most of these issues are invisible — your site looks and works fine, but underneath, there are gaps that automated tools can find in seconds.

If your website handles customer data, processes payments, or simply represents your business, a security issue can cost you money, reputation, and trust. The good news: most problems are quick to fix once you know about them.

What to Check

1. SSL/TLS Certificate

Your SSL certificate encrypts data between your website and visitors. Check that it's valid, not expired, and covers your full domain (including www). Look for the padlock icon in the browser address bar — if it's missing or showing a warning, your certificate needs attention.

2. Security Headers

Security headers are instructions your server sends to browsers, telling them how to behave. Important ones include Content-Security-Policy (prevents code injection), Strict-Transport-Security (forces HTTPS), and X-Frame-Options (prevents clickjacking). Most websites are missing at least some of these.

3. HTTPS Everywhere

Every page on your site should load over HTTPS, not just the homepage. Check that HTTP requests redirect to HTTPS automatically, and that there's no "mixed content" — pages loading some resources (images, scripts) over insecure HTTP.

4. Cookie Security

Cookies should have the Secure flag (only sent over HTTPS), the HttpOnly flag (not accessible to JavaScript), and the SameSite attribute (prevents cross-site request forgery). Insecure cookies are one of the most common findings in security audits.

5. Server Information Leakage

Your server might be advertising its software version, operating system, or framework in HTTP response headers. This gives attackers a head start — they know exactly which vulnerabilities to try. Removing or masking these headers is a simple fix.

The Easy Way

You can check all of this manually, but it takes time and technical knowledge. A website security scanner automates the process — enter your URL, and get a score out of 100 with plain-English explanations of every issue found, plus exactly how to fix each one.

AuditStack checks 10 security categories in under 60 seconds using only publicly available data. No login attempts, no intrusive testing — completely safe and legal.