General Section¶

General Tab¶

Automatically Upgrade¶

OFF

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.)

Domain Key¶

empty string

A domain key is necessary if you want to use any of the following QUIC.cloud services:

• Content Delivery Network (CDN)
• Image Optimization
• Critical CSS Generation (CCSS)
• Unique CSS (UCSS)
• Low Quality Image Placeholder Generation (LQIP)
• Viewport Images (VPI)

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 QUIC.cloud services as an anonymous user.

If you want to get your QUIC.cloud account set up for this domain, so you will be able to access the QUIC.cloud Dashboard & use the QUIC.cloud CDN, press the Link to QUIC.cloud button. This is optional, but having a QUIC.cloud account gives you a Dashboard where you can:

• See detailed usage, statistics & even errors for all services
• Purchase additional quota if you run out
• Set up & manage all QUIC.cloud CDN options
• Easily open a QUIC.cloud support ticket
• Manage multiple domains in one place

Refresh Domain Key¶

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 the cache root at the virtual host level to fix an issue detecting the proper QUIC.cloud tier.

If a CDN or other reverse proxy is causing issues detecting this server's IP address, you can update it manually on the QUIC.cloud Dashboard under Settings.

Domain Aliases¶

You may experience domain key errors if you have multiple domains or subdomains for a single WordPress instance. This is common with multi-language plugins like WPML.

The correct way to set up such domains in QUIC.cloud is as follows:

• Set up the main domain in QUIC.cloud
• Set all additional domains and subdomains as aliases of the main one

If you have already set up a subdomain separately in QUIC.cloud, you will need to delete it from your QUIC.cloud account before you can add it as an alias.

Remove Domain Key¶

If you decide to stop using all QUIC.cloud services, and would like to remove your Domain Key, there is no button for this. However, you can remove it manually: delete the domain key from the text box and press the Save Changes button. The Domain Key will be removed from the LiteSpeed Cache plugin.

Guest Mode¶

OFF

When Guest Mode is enabled, LSCache serves a default version of the page from cache for a visitor's first request. This means, for this first visit only, ESI is not enabled, and no cache varies are considered.

Once the HTML of the page is loaded, then an Ajax call is used to load the "correct" version of the page for that visitor (i.e., the one where ESI and cache varies are considered, and whatever optimizations you normally run on your site are used).

The benefit is a lightning fast response time from the server.

Guest Optimization¶

ON

You can take Guest Mode even further by using Guest Optimization. When this setting is enabled, not only is the default version of the page served from cache, but also the maximum level of page optimization and image optimization is enacted on this default page even if those features are disabled otherwise.

If you have enabled Guest Optimization, you may see this message next to your disabled optimization features:

This setting is ON for certain qualifying requests due to Guest Optimization.

This message indicates that the optimization feature is usually OFF, but it is ON for requests that fit the criteria. Generally, this means the feature is enabled for bots, for certain user agents, and for a user's first visit to your site.

This setting can greatly improve page speed score, as it will always serve a cached, highly optimized page when services like GTmetrix and PageSpeed Insights request it.

Before you enable Guest Optimization, it's important to understand the impacts of "the maximum level of optimization." These are described in the warnings below.

If you are already using the following features, independent of Guest Optimization, then there will be no additional impact on your resources:

• Critical CSS Generation
• Unique CSS Generation
• Viewport Images Generation
• Separate Cache for Mobile View
• WebP Image Replacement

If you are not already using these features, these warnings should help you determine how Guest Optimization will impact your available resources, if at all:

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 http://example.com/path from the sitemap
• The crawler checks with the DNS to find example.com’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 example.com
• The CDN returns the page to the crawler

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

• The crawler gets http://example.com/path from the sitemap
• The crawler checks with the DNS to find example.com’s IP address
• The crawler grabs the page from example.com

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 http://example.com/path from the sitemap
• The crawler grabs the page directly from example.combecause it already knows the IP address

Every go-between is eliminated, along with all of the the resulting overhead.

Notifications¶

ON

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

Use Primary Site Configuration¶

OFF

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.

Tuning Tab¶

Guest Mode User Agents¶

The user agents listed in this box will always be served a cacheable landing page via Guest Mode, for every visit as long as Guest Mode is enabled. Use this setting for page speed scoring bots and other automated visitors that don't require personalized content. We've prepopulated the setting with known bots, but you can add or remove user agents as you wish.

Guest Mode IPs¶

The IP addresses listed in this box will always be served a cacheable landing page via Guest Mode, for every visit as long as Guest Mode is enabled. We've prepopulated the setting with IPs for known bots like search engines, but you can add or remove IP addresses as you wish.