Cloudflare

If you're running a small Drupal site on limited space like I am, you'll probably not have more than 30 GB for hard disk space and maybe 2 vCPU and 2 GB RAM on your server. This could affect your Drupal site speed if there are a lot of images or even with time as the content grows, you'll have server load issues. I've optimized my site so much that the performance is 98-100 on most pages and still able to sustain a viewership of 250 - 500 views per day without the server freaking out.