Over at Laravel News Mike Bronner wrote some tips on how to achieve an A+ rating for your HTTPS website.

Let’s take a few extra minutes to optimize your server and help it perform faster and be more secure. In this tutorial we will look at using SSL session caching, HTTP Strict Transport Security (HSTS), and Hypertext Transfer Protocol 2 (HTTP/2).

https://laravel-news.com/2016/01/optimizing-ssl-laravel-forge/