Utilize API Gateway stage variables to overwrite the default URL with the company's domain name and import the corresponding public certificate into AWS Certificate Manager (ACM).

Establish Route 53 DNS records for the company's domain, configure an alias to the API Gateway stage endpoint, and import the public certificate into AWS Certificate Manager (ACM).

Create a Regional API Gateway endpoint, associate it with the company's domain, import the public certificate into ACM in the same Region, attach the certificate to the endpoint, and set up Route 53 to direct traffic to the API Gateway.

Form a Regional API Gateway endpoint linked to the company's domain, import the public certificate into ACM, attach it to the APIs, and create Route 53 DNS records to point to the company's domain.