How to check if working?

And also, if I disable your Redis plugin the results are still the same??

That means Redis and the object cache dropin is working properly.

I can’t assist you in debugging your installation any further remotely.

I recommend you hire a developer of your choice to have a look at your server. You’re welcome to hire me as a consultant as well.

A couple of notes:

• Make sure you’re looking at the right Redis server and database.
• Make sure your WordPress installation is not flushing the entire cache after each request using wp_flush_cache() or similar.
• Disabling the plugin will not remove the object cache dropin, so Redis will remain active until you click “Disable Object Cache” or delete the wp-content/object-cache.php file.

In my opinion your plugin is not using Redis at all and simply the object cache from WordPress.

If I ‘Disable Object Cache’ your test plugin still says it successfully found the Redis test key.

In my opinion your plugin is not using Redis at all and simply the object cache from WordPress.

fwiw, this may be true for you, but my redis db is quite full of cached material using this plugin, so i would guess as the developer suggested that what you are seeing is specific to your configuration.