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Audit and fix all mixed content warnings

30-45 min Impact: high Effort: medium ✓ Manual completion

Mixed content happens when an HTTPS page loads even one resource, an image, a script, a stylesheet, over plain HTTP instead of HTTPS, breaking the security guarantee for the whole page even though the address bar still shows a padlock.

Modern browsers actively block the most dangerous mixed content (like scripts) and visibly warn on the rest, so unresolved mixed content both weakens real security and looks unpolished to any visitor who notices the warning.

The full picture

A comprehensive audit and fix of all mixed content warnings extends the individual mixed-content check discussed within the automated scan checks into a genuinely thorough, manual review process — while automated scanning catches many instances, a genuine comprehensive audit ensures no instances slip through, particularly on complex sites with numerous third-party integrations or legacy content.

This thoroughness matters because even a single overlooked instance of mixed content undermines the security guarantee HTTPS is meant to provide for that specific page — genuine comprehensiveness, checking every page type and every third-party integration your site includes, rather than assuming automated scanning caught everything, closes gaps that could otherwise persist undetected.

Third-party embeds and widgets represent a particularly common, genuinely overlooked source of mixed content — these external integrations sometimes load resources over HTTP even when your own site's direct content is properly secured, requiring you to verify each specific third-party integration's actual resource-loading behavior rather than only checking your own directly-authored content.

This audit deserves periodic repetition rather than treatment as a single, one-time task — new third-party integrations or content additions can reintroduce mixed content issues even after a genuinely thorough initial cleanup, making this an ongoing verification practice worth building into your regular site maintenance rather than a task considered permanently complete after one pass.

How to do it

  1. 1
    Scan every page for mixed content warnings
    Open browser dev tools console on your key pages and look for mixed content warnings, or use an automated scanner across the whole site.
  2. 2
    Update every hardcoded http:// reference found
    Images, scripts, embeds, and stylesheets referencing http:// should point to the https:// version instead.
  3. 3
    Check old content specifically
    Blog posts or pages written before your site had HTTPS are the most common source of leftover http:// references.
  4. 4
    Re-scan after fixing to confirm
    Console should show zero mixed content warnings on a fresh load of each key page.

Common mistakes

How you will know it is done

Every page loads with zero mixed content warnings in the browser console.

Track this in your hive

The Security Ring turns this into a real, permanent mission — mark it complete once you have genuinely done it.

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