How do I install and enable LiteSpeed Cache?

LiteSpeed Cache (LSCache) is one of the best performance plugins for WordPress when your hosting runs LiteSpeed or OpenLiteSpeed. It can dramatically improve load times by enabling full-page caching, browser caching, smart optimization for CSS/JS, image optimization, and optional CDN integration.

This Hosticko guide explains how to install LiteSpeed Cache, enable it correctly, and configure the “high impact” settings that usually increase performance without breaking layouts or functionality.

Before You Start (Quick Compatibility Check) #

LiteSpeed Cache works best when your server uses LiteSpeed Web Server (or OpenLiteSpeed). You can still use parts of the plugin on other servers, but full page caching is a LiteSpeed feature.

How to check if LiteSpeed is active #

1. Log in to your WordPress admin
2. Go to: LiteSpeed Cache → Dashboard
3. Look for a status message such as LiteSpeed detected / caching available

If LiteSpeed is not detected: you can still use optimization features, but page caching may not work as expected. In that case, ask Hosticko support what web server your plan uses.

Step 1: Install LiteSpeed Cache Plugin #

1. In WordPress admin, go to Plugins → Add New
2. Search for LiteSpeed Cache
3. Click Install Now
4. Click Activate

LiteSpeed Cache plugin on WordPress.org

Step 2: Enable LiteSpeed Cache (Core Settings) #

After activation, go to:

LiteSpeed Cache → Cache

Recommended “Safe Start” Settings #

• Enable Cache: ON
• Cache Mobile: OFF (turn on only if you truly serve different mobile HTML)
• Cache Logged-in Users: OFF (usually best for membership sites to avoid issues)
• Cache REST API: ON (generally safe)
• Browser Cache: ON

Pro tip: If your site has cart/checkout (WooCommerce), LSCache handles common exclusions, but you should still test carefully.

Step 3: Turn on “Smart” Performance Features (Recommended) #

Go to: LiteSpeed Cache → Page Optimization

CSS / JS (Start conservative) #

• CSS Minify: ON
• JS Minify: ON
• Load CSS Asynchronously: OFF initially (turn on after testing)
• JS Combine: OFF initially (combine can break some themes/plugins)
• Delay JS: Optional (great speed boost but test forms/sliders)

Best practice: Enable one change at a time, then test your homepage, menu, forms, and checkout (if any).

Step 4: Enable Image Optimization (Big Gains) #

Go to: LiteSpeed Cache → Image Optimization

Recommended Settings #

• Image Optimization: Request optimization
• Lazy Load Images: ON
• Lazy Load iFrames: ON (YouTube embeds benefit a lot)
• WebP Image Replacement: ON (if you generate WebP)

Note: Image optimization can take time depending on the number of images. Don’t panic if it doesn’t happen instantly.

Step 5: Enable Object Cache (Only If Supported) #

Object cache helps database-heavy websites. It’s especially useful for WooCommerce, large blogs, and membership sites.

Go to: LiteSpeed Cache → Cache → Object

• Object Cache: ON (only if Redis/Memcached is available)
• Method: Redis (preferred) or Memcached (if that’s what you have)

If you don’t know: Don’t guess. Ask Hosticko support whether your plan includes Redis/Memcached access.

Step 6: Optional – QUIC.cloud CDN (If You Want Global Speed) #

LiteSpeed Cache integrates with QUIC.cloud for CDN and image optimization services. This can help if your audience is global and you want faster delivery worldwide.

1. Go to LiteSpeed Cache → General
2. Find QUIC.cloud and follow the setup prompts
3. Verify DNS/CDN mode if you enable full CDN services

QUIC.cloud documentation

How to Clear Cache (When You Make Changes) #

After changing settings, you should purge cache:

• Go to LiteSpeed Cache → Toolbox → Purge
• Click Purge All

Also purge: if you use Cloudflare/CDN, clear cache there too.

Testing Checklist (So You Don’t Break Your Site) #

After enabling LiteSpeed Cache, test these pages:

• Homepage and top landing pages
• Contact form submissions
• Login/logout flow
• Shopping cart / checkout (if WooCommerce)
• Mobile view (menu, sliders, sticky header)

Speed Test Tools #

• Google PageSpeed Insights
• GTmetrix
• WebPageTest

Common Problems and Fixes #

1) Layout breaks after enabling optimization #

• Disable CSS Combine and JS Combine first (if enabled).
• Keep minify ON, but avoid advanced combos until stable.
• Use the plugin’s exclude options for problem scripts/styles.

2) Admin changes not showing #

• Purge cache (Purge All).
• Clear browser cache or open incognito.
• If a CDN is enabled, purge CDN cache too.

3) WooCommerce cart/checkout issues #

• Ensure logged-in cache is OFF (usually safer).
• Exclude checkout/cart pages if needed (rare, but possible depending on setup).

FAQ #

Is LiteSpeed Cache better than WP Rocket? #

They’re both strong, but LiteSpeed Cache has a major advantage on LiteSpeed servers because it supports server-level full-page caching. Your results depend on your host and site structure.

Do I need a CDN if I use LiteSpeed Cache? #

Not always. A CDN helps if you have international visitors, heavy images, or you want faster global delivery. If your audience is local, caching alone may be enough.

Should I enable all optimizations at once? #

No. Enable settings gradually and test. Performance plugins can conflict with themes and page builders when aggressive options are turned on together.

Need Help? #

If you want Hosticko to recommend the best LiteSpeed Cache settings for your specific website (Elementor, WooCommerce, custom themes), submit a ticket and share your domain URL:

https://client.hosticko.com/submitticket.php

Related Hosticko Pages #

• WordPress Hosting
• cPanel Hosting
• VPS Hosting