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Keep in mind, when the "anonymousCache" is enabled, this means that all non-authenticated users will utilize this cache.  This cache can result in massive speed improvements (for initial page load), as the majority of users may be interacting with cached content. However, these users may occasionally encounter cached pages which are outdated or "stale" (based on values of "timeToLive" and "allowStale").  This means that these users will not immediately see new updates or newly added content (Communities, Collections, Items) until the cache has refreshed itself.  That said, when "timeToLive" is set to a low value (like 10 seconds), this risk is minimal for highly active pages/content.

cache:
  ...
  serverSide:
    # Set to true to see all cache hits/misses/refreshes in your console logs. Useful for debugging

cache:
  ...
  serverSide:
    # Set to true to see all cache hits/misses/refreshes in your console logs. Useful for debugging SSR caching issues.
    debug: false
    # When enabled (i.e. max > 0), known bots will be sent pages from a server side cache specific for bots.
    # (Keep in mind, bot detection cannot be guarranteed. It is possible some bots will bypass this cache.)
    botCache:
      # Maximum number of pages to cache for known bots. Set to zero (0) to disable server side caching for bots.
      # Default is 1000, which means the 1000 most recently accessed public pages will be cached.
      # As all pages are cached in server memory, increasing this value will increase memory needs.
      # Individual cached pages are usually small (<100KB), so max=1000 should only require ~100MB of memory.
      max: 1000
      # Amount of time after which cached pages are considered stale (in ms). After becoming stale, the cached
      # copy is automatically refreshed on the next request.
      # NOTE: For the bot cache, this setting may impact how quickly search engine bots will index new content on your site.
      # For example, setting this to one week may mean that search engine bots may not find all new content for one week.
      timeToLive: 86400000 # 1 day
      # When set to true, after timeToLive expires, the next request will receive the *cached* page & then re-render the page
      # behind the scenes to update the cache. This ensures users primarily interact with the cache, but may receive stale pages (older than timeToLive).
      # When set to false, after timeToLive expires, the next request will wait on SSR to complete & receive a fresh page (which is then saved to cache).
      # This ensures stale pages (older than timeToLive) are never returned from the cache, but some users will wait on SSR.
      allowStale: true
    # When enabled (i.e. max > 0), all anonymous users will be sent pages from a server side cache.
    # This allows anonymous users to interact more quickly with the site, but also means they may see slightly
    # outdated content (based on timeToLive)
    anonymousCache:
      # Maximum number of pages to cache. Default is zero (0) which means anonymous user cache is disabled.
      # As all pages are cached in server memory, increasing this value will increase memory needs.
      # Individual cached pages are usually small (<100KB), so a value of max=1000 would only require ~100MB of memory. 
      max: 0
      # Amount of time after which cached pages are considered stale (in ms). After becoming stale, the cached
      # copy is automatically refreshed on the next request.
      # NOTE: For the anonymous cache, it is recommended to keep this value low to avoid anonymous users seeing outdated content.
      timeToLive: 10000 # 10 seconds
      # When set to true, after timeToLive expires, the next request will receive the *cached* page & then re-render the page
      # behind the scenes to update the cache. This ensures users primarily interact with the cache, but may receive stale pages (older than timeToLive).
      # When set to false, after timeToLive expires, the next request will wait on SSR to complete & receive a fresh page (which is then saved to cache).
      # This ensures receive stale pages (older than timeToLive) are never returned from the cache, but some users.
      # When set to false, after timeToLive expires, the next request will wait on SSR.
 to complete & receive a allowStale:fresh true 

page (which is then saved to cache).
      # This ensures stale pages (older than timeToLive) are never returned from the cache, but some users will wait on SSR.
      allowStale: true