Top 5 WordPress Caching Plugins to Speed Up Your Website (2018)
1. W3 Total Cache
2. WP Super Cache
3. WP Rocket
4. Sucuri Firewall
5. Built-in Cache Plugins from Hosting
Caching helps significantly reduce the load on hosting servers allowing them to perform optimally. This is why many managed WordPress hosting companies now offer their own built-in caching solutions.
If your website is hosted with one of the following hosting companies, then you can use their built-in caching plugins for your websites.