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How to Register a Custom Domain for Your Azure Application: A Step-by-Step Guide

Registering a custom domain for your Azure application can significantly enhance your brand's online presence and credibility. This guide will walk you through the entire process, from purchasing a domain to configuring it for use with your Azure services.

Step 1. Purchase a Custom Domain

The first step is to purchase a custom domain if you don't already own one. You can buy a domain from various domain registrars like GoDaddy, Namecheap, or even directly through Azure.

  1. Choose a Domain Registrar: Select a reliable domain registrar.
  2. Search for Available Domains: Use the registrar's search tool to find an available domain that suits your brand.
  3. Purchase the Domain: Follow the registrar's instructions to purchase the domain.

Step 2. Create an Azure Resource Group

Before configuring your custom domain, you need an Azure Resource Group to organize related resources.

  1. Sign in to the Azure Portal
  2. Create a Resource Group
    • In the left-hand menu, click on Resource Groups.
    • Click on + Create.
    • Enter the required details, Subscription, Resource group name, and Region.
    • Click Review + Create and then Create.

Step 3. Create an App Service

If you haven't already created an Azure App Service for your application, you'll need to do that next.

  1. Create an App Service
    • In the Azure Portal, click on Create a resource.
    • Search for App Service and select it.
    • Click Create.
    • Fill in the required information: Subscription, Resource Group, Name, Publish type, Runtime stack, Operating System, and Region.
    • Click Review + Create and then Create.

Step 4. Configure DNS Settings

After purchasing your domain and setting up your Azure resources, you need to configure DNS settings to point your domain to your Azure App Service.

  1. Access DNS Settings
    • Log in to your domain registrar's website.
    • Navigate to the DNS management section.
  2. Add CNAME and A Records
    • CNAME Record
      • Alias: www (or your preferred subdomain)
      • Points to: <your-app-name>.azurewebsites.net
    • A Record
      • Alias: @
      • Points to the IP address of your Azure App Service (you can find this in the Azure Portal under your App Service's Custom Domains section).

Step 5. Verify Domain Ownership in Azure

Now, you need to verify that you own the domain in the Azure Portal.

  1. Navigate to Your App Service
    • In the Azure Portal, go to your App Service.
    • In the left-hand menu, select Custom Domains.
  2. Add Custom Domain
    • Click on Add Custom domain.
    • Enter your domain name and click Validate.
    • Follow the instructions to add a TXT record to your domain's DNS settings for verification.
  3. Verify and Configure
    • After adding the TXT record, click Validate again in the Azure Portal.
    • Once validated, your custom domain will be listed under the Custom Domains section of your App Service.

Step 6. Enable HTTPS for Your Custom Domain

To ensure secure communication, enable HTTPS for your custom domain.

  1. Navigate to TLS/SSL Settings
    • In your App Service, go to TLS/SSL settings in the left-hand menu.
  2. Add TLS/SSL Binding
    • Click on Add TLS/SSL binding.
    • Select your custom domain.
    • Choose a certificate, You can use a free App Service Managed Certificate or upload your own.
    • Click Add Binding.

Step 7. Test Your Custom Domain

Finally, test your custom domain to ensure everything is configured correctly.

  1. Open a Web Browser
  2. Check HTTPS
    • Ensure the site loads over HTTPS without any security warnings.

Conclusion

Registering and configuring a custom domain for your Azure application involves several steps, from purchasing the domain to configuring DNS settings and enabling HTTPS. By following this guide, you can seamlessly integrate a custom domain with your Azure App Service, enhancing your application's professional appearance and user trust.


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