You need to secure the corporate website to meet the security requirements.

Create an App Service instance with a standard plan. Configure the custom domain with a TLS/SSL certificate.

Create an Azure Application Gateway with a Web Application Firewall (WAF). Configure end-to-end TLS encryption and the WAF.

Create an Azure Cache for Radis instance. Update the code to support the cache.

Create an Azure Content Delivery Network profile and endpoint. Configure the endpoint.