Thank You Nastia,
I wasn’t sure as the Installation notes mentioned:
Caching Plugins
Blackhole works with any type of caching plugin where “page caching” is not enabled.
There are many types of cache plugins. They provide all sorts of different caching mechanisms and features. All caching features work great with Blackhole except for “page caching”. With page caching, the required WP init hook may not be fired, which means that plugins like Blackhole are not able to log and ban requests dynamically. Fortunately, some of the most popular caching plugins provide settings that enable full compatibility with Blackhole. For a complete list, check out this article. Note: that article was written for Blackhole Pro, but the compatibility list and general info apply also to Blackhole (free version).