Improving website loading or response time

You can improve your website performance with Amazon CloudFront. For web applications, you can leverage a combination of CloudFront and your users browsers to cache content closer to your users. The standard way of controlling these caches is through the Cache-Control HTTP header that is sent by your origin, where you can define how long an object is cached by setting a time to live (TTL).

CloudFront also allows you to configure two timeouts to optimize the connection to your origin. The read timeout specifies the amount of time CloudFront waits for a response from your custom origin. The default value is 30 seconds, but if you have certain actions on your website that take longer for processing on the backend, you should configure a higher read timeout so that your users are able to complete their transaction successfully in one request. The keep-alive idle timeout specifies the maximum amount of time that CloudFront will maintain an idle connection with your origin server before closing the connection. The default keep-alive idle timeout is 5 seconds, but you can configure a higher value up to 60 seconds, if your origin servers also support it. This is particularly useful when serving dynamic content over CloudFront because even though every request is forwarded to the origin, you can avoid creating a new connection every time.

[Reference]

[1] Improve your website performance with Amazon CloudFront

[2] Configure Read Timeout and Keep-Alive Timeout values