The document outlines essential steps to improve website speed scores, highlighting issues and suggested optimizations such as improving server response time, leveraging browser caching, and minifying resources. It describes the effectiveness of popular caching and optimization plugins based on testing results with various configurations. The importance of image optimization and removing unnecessary elements for better performance is also emphasized.

1. Essential Steps to a Superior
PageSpeed Score
Eric Leu
Systems Engineer
LiteSpeed Technologies, Inc.

3. Poorly performing site

4. Common Page Scoring Sites
PageSpeed Insights
GTmetrix
Pingdom

5. Common Issues Suggested by Scoring Sites
PageSpeed GTmetrix Pingdom

7. ● Improve server response time
● Leverage browser caching
● Enable compression
Minify
● Minify HTML
● Minify CSS
● Minify JavaScript
● Remove render-blocking JavaScript
● Optimize CSS Delivery
Image
● Image Optimize
● Webp
Remove
● Remove query strings
● Remove WP Emoji
Summary

9. Testing Environment
● LiteSpeed Web Server ● Apache
● W3 Total Cache 09.7
● WP Rocket 3.0.5.1
● WP Fastest Cache 0.8.8.3 +
Premium 1.5.0
● LiteSpeed Cache 2.4.1
● WP Super Cache 1.6.2
● DigitalOcean $10/mo
● WordPress 4.9.8 ● Woocommerce 3.4.4

10. Page Speed Scores
Before Caching or Optimization
Score Sites Scores
PageSpeed
Insights
GTmetrix
Pingdom

12. ● Improve server response time
● Leverage browser caching
● Enable compression
Minify
● Minify HTML
● Minify CSS
● Minify JavaScript
● Remove render-blocking JavaScript
● Optimize CSS Delivery
Image
● Image Optimize
● Webp
Remove
● Remove query strings
● Remove WP Emoji

13. Popular Cache Plugins

14. When 100 users visit a
site, cache dramatically
helps reduce response
time.
After enabling cache
response time:
2.5s 0.2s
Full Page Caching & Response Time

15. Caching Enabled with Basic Settings
(FPC, browser cache, gzip)
WP Fastest1
LSCache WP Rocket2
WP Super W3 total
PageSpeed
Insights
GTmetrix
Pingdom
Plugins
Score
1: WP Fastest Cache has paid for parts.
2: WP Rocket is a paid plugin.
Cache Minify Image Remove

16. ● Improve server response time
● Leverage browser caching
● Enable compression
Minify
● Minify HTML
● Minify CSS
● Minify JavaScript
● Remove render-blocking JavaScript
● Optimize CSS Delivery
Image
● Image Optimize
● Webp
Remove
● Remove query strings
● Remove WP Emoji

17. CSS/JS/HTML Minify

18. CSS/JS Combine

19. CSS/JS/HTML Optimization
WP Fastest1
LSCache WP Rocket2
WP Super W3 Total
PageSpeed
Insights
GTmetrix
Pingdom
Plugins
Score
1: WP Fastest Cache has paid for parts.
2: WP Rocket is a paid plugin.
Cache Minify Image Remove

20. Popular Optimization Plugins

21. Minify
● Minify HTML
● Minify CSS
● Minify JavaScript
● Remove render-blocking JavaScript
● Optimize CSS Delivery
Image
● Image Optimize
● Webp
Remove
● Remove query strings
● Remove WP Emoji
● Improve server response time
● Leverage browser caching
● Enable compression

22. Image Optimization

23. Image Optimization
WP Fastest1
LSCache WP Rocket2
WP Super W3 total
PageSpeed
Insights
GTmetrix
Pingdom
Score
1: WP Fastest Cache has paid for parts.
2: WP Rocket is a paid plugin.
Plugins
Cache Minify Image Remove

24. Popular Image Optimization Plugins

25. Minify
● Minify HTML
● Minify CSS
● Minify JavaScript
● Remove render-blocking JavaScript
● Optimize CSS Delivery● Improve server response time
● Leverage browser caching
● Enable compression
Remove
● Remove query strings
● Remove WP Emoji
Image
● Image Optimize
● Webp

26. Removing Unnecessary Elements
WP Fastest1
LSCache WP Rocket2
WP Super W3 total
PageSpeed
Insights
GTmetrix
Pingdom
Score
1: WP Fastest Cache has paid for parts.
2: WP Rocket is a paid plugin.
Plugins
Cache Minify Image Remove

27. Popular Query String Removal Plugins

28. ● Improve server response time
● Leverage browser caching
● Enable compression
Minify
● Minify HTML
● Minify CSS
● Minify JavaScript
● Remove render-blocking JavaScript
● Optimize CSS Delivery
Image
● Image Optimize
● Webp
Remove
● Remove query strings
● Remove WP Emoji

29. All Plugin Optimization Features Enabled
WP Fastest1
LSCache WP Rocket2
WP Super W3 total
PageSpeed
Insights
PS-Mobile
GTmetrix
Pingdom
Score
Plugins
Cache Minify Image Remove
1: WP Fastest Cache has paid for parts.
2: WP Rocket is a paid plugin.

30. Page Size (KB) After Optimization
WP Fastest1
LSCache WP Rocket2
WP Super W3 Total
GTmetrix
Pingdom
Score
1: WP Fastest Cache has paid for parts.
2: WP Rocket is a paid plugin.
Plugins
Cache Minify Image Remove

32. ● Integrated CDN ● Object Caching
● Cache Crawler
● Mobile Caching
● HTTP/2 Server Push
● Instant Click
Extra Functions of Cache Plugins

33. ● Better compatibility with existing plugins and theme
● Better compression
● Mobile view friendly
● Variety of built-in features, e.g. CDN, Crawler
● Friendly interface
How to Choose a Cache Plugin

34. eleu@litespeedtech.com