Using a caching plugin & Geo Blocking is not recommended:
Using this plugin with a caching plugin
Please note that many of the caching plugins are not compatible with this plugin. The nature of caching is that a dynamically build web page is cached into a static page.
If a visitor is blocked this plugin sends header data where it supplies info that the page should not be cached. Many plugins however disregard this info and cache the page or the redirect. Resulting in valid visitors receiving a message that they are blocked. This is not a malfunction of this plugin.
Disclaimer: No guarantees are made but after some light testing the following caching plugins seem to work: Comet Cache, WP Super Cache
Plugins that do NOT work: W3 Total Cache, Hyper cache, WPRocket
Warning: Caching & Geo Blocking do not work well together.
In the best case scenario countries or IP’s you want to block get served a page from cache and when visiting non cached pages they get blocked. This is due to the fact when pages are served from cache the iQ Block Country plugin does not get started and can’t do it’s job.
If the caching plugin however ignores the caching headers you risk the chance that the block message gets cached and everyone gets to see they are blocked even the countries that you did not block.
If you’re fine with blocked countries getting served the page from cache then you’re fine using the iQ Block Country plugin.
If you’re not you should disable either the cache or the Geo Blocking. Or search for another solution outside WordPress (for instance by using the Varnish software) where you can GeoBlock at a caching level.
