Security

9 Website Security Checks Every Business Owner Should Know About

A plain-English guide to the 9 most important website security checks — HTTPS, HSTS, CSP, and more. Find out which ones your site is failing right now.

Security doesn't have to be complicated

Most website security guides are written for developers. But the business owner whose site gets hacked isn't a developer. This guide explains the 9 checks that matter most, in plain English.

1. HTTPS — Is your connection encrypted?

This is the padlock in your browser's address bar. HTTPS encrypts the connection between your visitor's device and your server. Every website needs this. Full stop.

2. HTTP → HTTPS Redirect

Having HTTPS isn't enough if visitors can still reach the unencrypted version. When someone types your domain without https://, they should be automatically redirected to the secure version.

3. HSTS — Does your site enforce HTTPS permanently?

HTTP Strict Transport Security tells browsers to always use HTTPS for your domain, preventing SSL stripping attacks.

4. Clickjacking Protection

Without the right headers, attackers can embed your site inside an invisible iframe, tricking visitors into clicking things they can't see. The X-Frame-Options header prevents this.

5. MIME Sniffing Protection

The X-Content-Type-Options: nosniff header prevents browsers from being tricked about file types, closing a loophole used in code execution attacks.

6. Content Security Policy

A CSP tells browsers exactly which scripts are allowed to run on your pages, blocking anything injected by an attacker.

7. Referrer Policy

Controls what information your site shares when visitors click links to other sites, preventing unintentional data leaks.

8. Server Info Leakage

Your server should never reveal what software and version it's running. Attackers use this to look up known vulnerabilities.

9. Technology Leakage

The X-Powered-By header often reveals your tech stack. It should always be removed.

Run all 9 checks right now — free

Our Website Security Scanner checks all 9 and gives you a clear A–F grade with explanations. No login required.