@faisal ali Thanks for reaching out. To start with, you can check out the Azure App Service migration assistant to get a free compatibility report for your external app.
You can first run a scan on your web app’s public URL for a report of the technologies it uses and whether App Service fully supports them. If compatible, you’ll be guided to download the migration assistant to simplify your migration.
Running a scan on the URL you shared, I see that your site’s framework and hosting model are fully supported for migration to App Service. You can proceed with downloading the migration assistant and follow the mentioned steps to migrate your web app to Azure.
You can access the complete report here: Your Azure App Service migration assistant assessment report
Feel free to also check out the Azure App Service documentation for any details you may need.
Hope this helps. Do let us know in case you have further questions.
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