Mixed content occurs when a webpage loaded over a secure HTTPS connection contains resources (like images, scripts, or stylesheets) loaded over an insecure HTTP connection. This creates a security vulnerability because while the main page is encrypted, some elements are transmitted in plain text, making them susceptible to interception or manipulation.

Modern browsers actively block or warn about mixed content to protect users. There are two main types:

• Mixed Passive Content: Includes images, audio, or video. Browsers may still load these but display a security warning.
• Mixed Active Content: Includes scripts, stylesheets, iframes, or fonts. This is more dangerous as it can be used to hijack the page, and browsers typically block it entirely.

To fix mixed content issues on your hosted website:

1. Update all resource URLs in your code to use HTTPS (https://) instead of HTTP.
2. Use protocol-relative URLs (starting with //) where possible, but HTTPS is now the standard.
3. Check your browser's Developer Tools Console for specific mixed content warnings.
4. Ensure all third-party plugins or widgets you embed also support HTTPS.

Eliminating mixed content is crucial for maintaining user trust, SEO rankings, and full HTTPS security benefits for your hosted site.