Is the SSL Certificate Affected by the Programming Language?

The programming language used on your website (such as PHP, ASP.NET, JavaScript, etc.) does not affect the validity or functionality of the SSL certificate.

SSL is a security protocol that enables encrypted communication and data transfer (such as passwords, credit card information, national ID numbers, etc.) between the server and the web browser.

SSL certificates are typically issued for a single domain and are not concerned with the backend code running on the website.

You just need to ensure that your HTTPS pages do not include any resources—such as images, stylesheets, or JavaScript—loaded via HTTP.

This is because modern web browsers (such as Google Chrome, Mozilla Firefox, Microsoft Edge, etc.) treat this as a security risk and may display warnings to your visitors.

Incorrect Example:

<img src="http://www.example.com/logo.png">

Correct Example:

<img src="https://www.example.com/logo.png" style="height:42px; width:250px">

Even if your SSL certificate is correctly installed, your site may still be marked as "not secure" by browsers.

Therefore, there should be no resources called via HTTP on your pages.