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!LSCWP General Section General Tab

Automatically Upgrade


You can have this plugin upgrade automatically any time a new version is available. This saves you the effort of having to manually execute an update. If this option is enabled, your site will get LSCWP updates within a few hours of the new versions going live in the WordPress Plugin Directory. This delay is intentional, as it gives us time to make sure that there are no serious problems with the update.

Automatic Upgrade only works if you have WP-Cron enabled. (WP-Cron is enabled in WordPress by default, so if you don't know whether it's enabled on your site, it probably is.)


This setting is moved to the Network Admin screen when used with a multisite network

Domain Key

empty string

A domain key is necessary if you want to use services. These services include Image Optimization, Critical CSS Generation (CCSS), Low Quality Image Placeholder Generation (LQIP), and Content Delivery Network (CDN) services.


For online services to work correctly, you must whitelist all server IPs to ensure open communication. Before generating a domain key, please verify all IPs on this list are whitelisted.

Press the Request Domain Key button to create your domain API key for the first time. Once the request is approved then your domain will be able to use most of the services as an anonymous user.

Press the Link to button after that if you want to get your account setup for this domain so you will be able to access the Dashboard & use the CDN.

With the Dashboard you can:

  • See detailed usage, statistics & even errors for all services
  • Have the ability to increase the quota limits with credits
  • Setup & manage all CDN options
  • Easily open a support ticket
  • Manage multiple domains in one place

You don't need to press Refresh Domain Key unless:

  • Your server was migrated to a different type
  • You enabled LSCache and/or set up cache root at virtual host level to fix an issue detecting the proper tier

Now if a CDN or other reverse proxy is causing issues detecting this server's IP address (used for direct communication with the servers), it can be manually updated under Settings of the dashboard also.

Server IP

Empty string

This field is used by the Crawler and by the Critical CSS generator. By providing your Site’s IP address, we can eliminate the overhead involved in DNS and Content Delivery Network (CDN) lookups for these functions. To understand why, let’s look at a few scenarios involving the crawler.

This is how it works if you’re using a CDN:

  • The crawler gets from the sitemap
  • The crawler checks with the DNS to find’s IP address
  • The DNS returns the CDNs IP address to the crawler
  • The crawler goes to the CDN to ask for the page
  • The CDN grabs the page from
  • The CDN returns the page to the crawler

This is how it works if you’re not using a CDN:

  • The crawler gets from the sitemap
  • The crawler checks with the DNS to find’s IP address
  • The crawler grabs the page from

In both scenarios, there are lookups that occur, expending time and resources. These lookups can be eliminated by entering your site’s IP in this field.

When the crawler knows your IP, this is how it works:

  • The crawler gets from the sitemap
  • The crawler grabs the page directly from yourserver.combecause it already knows the IP address

The middlemen are eliminated, along with all of their overhead.



Turn this option ON to see optional plugin announcements and notifications. This includes hotfixes, new releases, available beta versions, and promotions.


This setting does not impact status messages which provide information regarding plugin functions.

Use Primary Site Configuration


Turn this option ON to use the primary site's configuration for all subsites. This will disable the ability to make changes to most of the settings pages on all subsites.


This setting is only shown on the Network Admin screen when used with a multisite network

Last update: October 14, 2020