How to Fix Mixed Content Warnings After Installing an SSL
A mixed content warning occurs when a secure HTTPS website attempts to load images, scripts, or stylesheets over an insecure HTTP connection. Browsers block these insecure elements to protect users. To fix mixed content, you must locate the hardcoded HTTP links in your database or theme files and update them to HTTPS URLs.
What Is Mixed Content?
Mixed content is the "weak link" in your encryption chain:
Your Page | Resource Loading | Result |
HTTPS | HTTPS | Secure (padlock) |
HTTPS | HTTP | Mixed content (warning) |
HTTP | HTTP | Not secure |
How it happens: Your SSL certificate encrypts your page, but somewhere in your code, an image, script, or stylesheet still loads via http:// instead of https://. That single insecure element breaks the entire security promise.
Browser response: Modern browsers either block the insecure resource entirely or display a "Not Secure" warning, even though you installed SSL correctly.
Your certificate works. Your content references don't.
Why It Matters: Trust Disappears Instantly
The padlock is binary. Visitors see secure or not secure. There's no "mostly secure."
E-commerce impact: Checkout pages with mixed content warnings trigger immediate abandonment. Customers won't enter credit cards on pages flagged as insecure.
Browser behavior: Chrome and Firefox actively warn users. Some resources won't load at all, breaking page functionality.
SEO signals: Google prefers fully secure sites. Mixed content undermines your HTTPS ranking benefits.
One forgotten HTTP image URL can undo your entire SSL investment.
Decision Framework: Active vs Passive Mixed Content
Type | Examples | Browser Behavior |
Active mixed content | Scripts, iframes, CSS | Blocked entirely |
Passive mixed content | Images, audio, video | Loads with warning |
Active mixed content (dangerous): JavaScript and stylesheets can modify page behavior. Browsers block these completely, your site may break visually or functionally.
Passive mixed content (warning): Images and media can't execute code, so browsers load them but display warnings. Your site works, but the padlock disappears.
Both need fixing. Active content breaks functionality. Passive content destroys trust signals.
Implementation Steps: Find and Fix
Step 1: Open Chrome Developer Tools (F12) → Console tab. Mixed content errors show exact HTTP URLs.
Step 2: Check theme headers and footers first, hardcoded logo URLs are the #1 culprit. Look in Header.php, Footer.php, and theme customizer.
Step 3: Search your database (WordPress). Install "Better Search Replace" plugin. Replace http://yourdomain.com with https://yourdomain.com.
Step 4: Check plugin settings, sliders, galleries, social sharing plugins store URLs independently.
Step 5: Fix external resources. Third-party scripts (fonts, analytics) must use HTTPS.
Step 6: Clear all caches. Hard refresh (Ctrl+Shift+R). Verify padlock appears.
Step 7: Use WhyNoPadlock.com to scan for remaining issues.
Common Mistakes
Assuming HTTPS redirect fixes everything: Forcing HTTPS redirects visitors to secure pages but doesn't rewrite URLs stored in your database. Old http:// image links remain unchanged.
Only checking the homepage: Mixed content often hides on interior pages, blog posts, or product pages with old embedded images.
Forgetting theme customizer: Logo and favicon URLs set in WordPress customizer may use HTTP even after migration.
Ignoring external scripts: Google Fonts, analytics, chat widgets, any external resource must load via HTTPS.
What This Means for You
NameSilo SSL certificates encrypt your connection, but you must update your content references. NameSilo Hosting with cPanel makes database search-replace straightforward.
Install SSL, update your URLs, verify the padlock.
Frequently Asked Questions
What does mixed content mean?
HTTPS page loading HTTP resources.
How do I find mixed content on my website?
Chrome DevTools Console (F12) shows URLs.
Is mixed content dangerous?
Active content (scripts) yes. Passive (images) less so.
Does mixed content hurt SEO?
Yes. Google prefers fully secure sites.
How do I fix mixed content in WordPress?
Better Search Replace plugin for database URLs.
Why does my site say not fully secure?
At least one resource loads via HTTP.
Does SSL fix mixed content automatically?
No. Update URL references manually.
What is active vs passive mixed content?
Active = scripts (blocked). Passive = images (warning).
NameSilo Staff
The NameSilo staff of writers worked together on this post. It was a combination of efforts from our passionate writers that produce content to educate and provide insights for all our readers.
