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Website Security Scanner: Find Vulnerabilities Before Hackers Do

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LeadAuditPro Team

Most Websites Have Security Problems They Do Not Know About

Website security is one of those things everyone knows matters but almost nobody checks proactively. Small business owners assume their hosting provider handles it. Developers assume the framework takes care of it. And meanwhile, the site is running without basic security headers, exposing email addresses in plain text, and serving cookies without the Secure flag. None of these are exotic attack vectors — they are entry-level vulnerabilities that any automated scanner will find.

The uncomfortable truth is that hackers do not need to target you specifically. Automated bots scan millions of sites looking for common weaknesses. If your site has them, it is only a matter of time before something goes wrong — a defaced page, injected malware, stolen customer data, or a phishing page hosted on your domain without your knowledge.

Common Vulnerabilities You Should Check For

Missing or Misconfigured SSL

HTTPS is non-negotiable. But having an SSL certificate is not enough — it needs to be properly configured. Mixed content (loading HTTP resources on an HTTPS page) breaks the security chain entirely. Expired certificates trigger browser warnings that scare visitors away. Our scanner checks that your SSL is valid, properly installed, and that no mixed content is leaking through.

Security Headers

Security headers are instructions your server sends to the browser telling it how to behave. They are one of the most effective and easiest security measures to implement, yet most sites are missing several of them:

  • Content-Security-Policy (CSP) — prevents cross-site scripting and data injection attacks by specifying which sources the browser should trust
  • X-Frame-Options — stops your site from being embedded in iframes on other domains, preventing clickjacking attacks
  • X-Content-Type-Options — prevents MIME type sniffing, which can be used to execute malicious files disguised as something harmless
  • Strict-Transport-Security (HSTS) — forces browsers to always use HTTPS, even if someone types HTTP in the address bar
  • Referrer-Policy — controls how much URL information is shared when users navigate away from your site
  • Permissions-Policy — restricts which browser features (camera, microphone, geolocation) your site can access

Cookie Security

If your site uses cookies (and almost every site does), those cookies need the right flags set. The Secure flag ensures cookies are only sent over HTTPS. The HttpOnly flag prevents JavaScript from reading them, blocking a common XSS attack vector. The SameSite attribute prevents cross-site request forgery. Without these flags, session cookies can be intercepted or stolen with minimal effort.

Exposed Personal Information

Many websites unintentionally expose email addresses, phone numbers, or internal server paths in their HTML source code. Scrapers and spammers harvest this data continuously. Our scanner checks for exposed PII that you might not realize is visible to anyone who views your page source.

What Our Scanner Checks

The security scanner runs a comprehensive sweep covering SSL configuration, all major security headers, cookie flags, exposed data, server information disclosure, and common misconfigurations. You get a clear report with a security grade, a breakdown of what passed and what failed, and specific instructions for fixing each issue.

Most fixes take minutes — not hours. Adding security headers is usually a few lines in your server configuration or a single plugin setting in WordPress. The impact on your site's security posture is immediate and significant.

Scan Your Site Now

Do not wait until something goes wrong. A security scan takes less than a minute and could save you from a breach that costs thousands in cleanup, lost trust, and downtime.

Run a Free Security Scan

Want a complete picture of your site's health? Pair your security scan with a full website audit to catch SEO and performance issues at the same time. Or check your accessibility compliance while you are at it.

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