After adding cache tags, blocks with caching enabled will have an additional attribute of “Cache Tags” populated with the tags you've added. Open the block settings of a page in your external Rock site and click the ti ti-edit button. The cache tags created in the Cache Manager are displayed. Select the tag(s) you want to assign and click the Save button. Cache Tags - In the Content Channel example pictured above, the Cache Tags have been set to “messages”. Now we have the ability to clear the single tag (see Clearing Cache Tags) and update all blocks using the “messages” tag. Optionally, you could set a block to use multiple cache tags. This way, when any of the tags are cleared, the cache for the block would be updated.