Securing Data Transmissions with HTTPS in ASP.NET: A Plesk Panel Guide Print

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HTTPS has become the standard for secure communication over the internet. In this guide, you'll learn how to enforce HTTPS in your ASP.NET application hosted in a shared environment on Windows Server 2019 with Plesk.


  • Windows Server 2019 with Plesk installed
  • An existing ASP.NET application hosted on the server
  • Access to Plesk Panel with administrator or developer privileges

Step-by-Step Guide

Step 1: Acquire an SSL Certificate
  1. Plesk Panel: Log in to Plesk Panel and navigate to the domain where your ASP.NET application resides.
  2. SSL/TLS Certificates: Go to this section to purchase or upload an SSL certificate.
Step 2: Install the SSL Certificate
  1. Upload Certificate: If you've acquired the certificate from an external source, upload it here.
  2. Let's Encrypt: Alternatively, you can also use Plesk's integrated Let's Encrypt feature to obtain a free SSL certificate.
Step 3: Configure SSL in Plesk
  1. Hosting Settings: Navigate to this section and select the installed SSL certificate from the dropdown.
  2. Permanent SEO-safe 301 redirect from HTTP to HTTPS: Enable this option to ensure all HTTP traffic is redirected to HTTPS.
Step 4: Update Application Settings
  1. Web.config: Open your ASP.NET application’s web.config file.
  2. URL Rewrite Rules: Add rules to enforce HTTPS. Sample code snippet below:

<rule name="HTTP to HTTPS redirect" stopProcessing="true">
<match url="(.*)" />
<add input="{HTTPS}" pattern="off" ignoreCase="true" />
<action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />


Securing your ASP.NET application's data transmissions with HTTPS is crucial in today's digital landscape. With this guide, you should have a good starting point to secure your application using Plesk Panel on Windows Server 2019.

Additional Support

For further assistance or advanced scenarios, please refer to our knowledge base at or submit a ticket at

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