Free Mixed Content Checker
Detect HTTP resources on HTTPS pages that can break functionality and compromise security.
Ensure browser compatibility and prevent mixed content warnings.
- HTTP resource detection
- Browser compatibility check
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
Sarah Chen
Head of Security
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
Marcus Anderson
CTO
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
Oskar Nilsson
Tech Lead
Scan in three simple steps
Fast, safe, non-intrusive checks with actionable results.
Start scan
Enter your URL, and click the start scan button to begin.
Scan runs
Barrion performs passive, read-only security checks with minimal site impact.
Take Action
Fix issues with step-by-step guidance and enable monitoring for continuous protection.
What is mixed content?
Mixed content occurs when an HTTPS page loads resources (images, scripts, stylesheets, iframes) over HTTP. Modern browsers block or degrade these requests, breaking functionality and compromising security.
What this checker validates
- HTTP resource detection on HTTPS pages
- Browser compatibility and blocking behavior
- Protocol-relative URL analysis
- Third-party resource validation
How to fix mixed content
- Replace all
http://URLs withhttps:// - Update CDN and library URLs to HTTPS versions
- Fix hardcoded links in templates, CSS, and JavaScript
- Use CSP
upgrade-insecure-requestsas temporary mitigation
Tool-specific questions
Why do browsers block mixed content?
What's the difference between active and passive mixed content?
Can I use protocol-relative URLs (//example.com)?
How does CSP upgrade-insecure-requests help?
What if a third-party service doesn't support HTTPS?
Why Choose Barrion?
Real-Time Results
Instant security analysis with detailed reports, giving you an immediate security overview
Comprehensive Checks
Multiple best-practice security checks in a single scan, for broad coverage
Actionable and Effective
Clear recommendations for fixes, helping you improve your security quickly and effectively
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