Systematic Resolution Approaches

Database updates form the foundation of mixed content resolution for content-driven sites. SQL queries can identify and update HTTP URLs in content fields, though care is required with serialized data that breaks if modified incorrectly. WordPress sites require special attention to serialized options and post meta. Regular expressions help identify various URL formats including protocol-relative URLs that may cause issues.

Template and theme modifications address hardcoded HTTP resources in site structure. Header and footer files commonly contain hardcoded asset URLs requiring updates. CSS files may reference HTTP background images or fonts. JavaScript files might include hardcoded API endpoints or resource URLs. Systematic code review identifies these static mixed content sources for correction.

Content Delivery Network (CDN) configuration ensures resources serve over HTTPS. Many CDNs support both HTTP and HTTPS delivery, requiring configuration updates to force HTTPS. CloudFlare's Automatic HTTPS Rewrites feature can fix some mixed content automatically. CDN SSL certificates must cover all domains used for resource delivery. Proper CDN configuration often resolves a significant portion of mixed content issues.

Third-party service updates require coordination with external providers. Contacting services that only provide HTTP resources encourages HTTPS adoption. Many services offer HTTPS endpoints that require configuration updates. Some legacy services may require replacement with modern alternatives. Maintaining an inventory of third-party dependencies helps track resolution progress and identify problematic providers.