Fix CPU Overload / Abuse Issues ?
Most common things you need to follow will be:
1. Adding cloudflare for your domains which will protect your domains from Unwanted Traffic/Attack/Bot Access
2. Add robots.txt to understand Search engines to crawl your sites.There are lot of Crawl bots which will give unwanted traffic to your websites which will also cause Overloading on servers like (EP hits)
So create an robots.txt file under your public_html and place the below code :
Disallow: /User-Agent: Googlebot
If you want to add any other search engines to crawl your site you can add it in the above code