Caching
Description
VPP Systems has implemented a tool onto our WordPress sites called Redis Cache, a kind of database caching which improves performance for everyone who accesses the site. Redis works by keeping a copy of the WordPress site’s data in a location that can be quickly retrieved by your browser when you navigate to the site. In other words, it improves load times.
Usage
Enabling the Plugin
Redis Caching is enabled for all our WordPress sites be default. Site Admins do not need to enable it.
How to Use
Redis works in the background automatically, but there are times that the site admin will need to clear the database cache manually for troubleshooting purposes.
As with local web caching in the browser, it is possible for the Redis cached version to not match up with the current version of the WordPress site. If you notice an recently published or updated page does not appear to be correct, purging the cache for the specific page or site as a whole is the first thing you should try.
Purging the cache is completely safe, and Redis will grab the more up to date version the next time someone visits the site/page. As long as you are a site administrator, you will have permission to do this.
Note: After publishing any content to your site, it is a good practice to check the page in an incognito/private browsing window to ensure the changes can be seen. If it can’t be, this may mean that clearing the cache is required to refresh the version that has been cached.
For instructions on using incognito/private browsing, please see the external links below:
Steps to Clear Redis Cache
If you are not already logged in, log-in to your WordPress site by tagging on “/wp-admin” (no quotes), to the end of the URL in the address bar.
Once logged in, you should see the dashboard menu at the top of your browser window.
That’s it! The next time someone access the page, Redis will cache the contents again for everyone to enjoy faster load times once again.