(A very good 2019 latest version of wordpress plugin, which realizes the static of the whole site. Many online versions are old versions. This plugin is very compatible. Compared with the static plug-in WP-Super-Cache, the compatibility is still much more stable, because when the webmaster uses this WP-Super-Cache plug-in, he finds that many templates are not compatible. Inconsistencies in timestamps occurred, resulting in failure to enable caching after enabling the plugin.
There are not many requirements for plugin setup. You can configure them according to your needs. The main thing is to set a time to clear the cache regularly, and the rest can basically be kept as default.)