How to Boost the Performance of your WordPress-Powered Websites PRATIK JAGDISHWALA
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How to Boost the Performance of your WordPress-Powered Websites
PRATIK JAGDISHWALA
ABOUT ME
Why?
Why?●Very popular
●Easy to install, customize
●Simple to maintain
●Amazing community and commercial support
●User friendly
Issues?
Issues?●Malware
●Vulnerabilities
●Bad practices
●Un-optimized/Un-secure plugins/themes
●Too many addons
●Lack of long term maintenance strategy
●Resource hungry
●Provider Limitations
● 1 Second Delay in Page load leads to
○ 11% Drop in pageviews
○ 16% Decrease in customer satisfaction
○ 7% Loss in Conversion
●83% people expect a web page to load under 3 secs
●40% will abandon a web page if it takes more than 3 secs to load
●73% of mobile users have encountered a slow website
●Decrease in load times from 8 to 2 secs increase conversions by 74%
●73% customers won’t return to a website if it doesn’t load properly on their mobile device
Slow Site Problems
Solutions
Solutions●Adding more resources?
●VPS/Dedicated/Cloud?
●How much is too much?
●Where do you stop?
●What's the actual solution?
●Optimizations?
Optimizations
●Analyze your website
○ Firebug (Mozilla)
○ PageSpeed
○ Yslow
○ Gtmetrix.com (Combination of Pagespeed, Yslow, etc)
Optimizations
Optimizations - Simple
● Update WP/Plugins/Themes to the latest version
●Enable auto updates
● Disable unnecessary plugins
●Limit Web Crawlers and Bots
●Limit WP Crons (Use cPanel or server side crons)
●Use reliable theme providers
●Avoid/Limit external scripts
●Use smart placement of scripts (Use footer to load scripts)
●Clean up unused categories, tags, spam comments, etc.
Optimizations - Simple
●Use web optimized images (WP Smush)
●Use JPG instead of PNG
●No of elements < 30-50
●Page size guide
○ Excellent: Under 500 KB
○ Good: Under 1 MB
○ Acceptable: 1-3 MB
○ Needs Improvement: Above 3 MB
Optimizations - Simple
●Use Domain Sharding
●Use CSS Sprites
●Customize wp-config
○ Autosave intervals
○ Limit post revisions
○ wp_home
○ wp_siteurl
○ wp_allow_repair
●Hard Code template and stylesheet paths
Optimizations - Advanced
●WP-Sweep Plugin
○ Cleanup unused, orphaned and duplicate data
●WP-Optimize
●Anti Spambot plugin
●Expires and Etag for browsers
●Gzip on server
●MySQL caching
●Minify CSS, Javascripts
Optimizations - Advanced
●WP Super Cache or W3 Total Cache
●CDN’s
●Database caching
○ Memcached, Redis (DB caching)
●Web caching
○ Varnish caching
Optimizations - Advanced
●Resource Intensive Plugins
○ Some SEO plugins
○ Some image galleries and media players
○ Web based backup plugins
○ Web based crons
●Pirated plugins/themes
●Scripts/plugins/themes from unknown/unreliable sources
Optimizations - To Avoid
Case Study
Case Study● A simple blog set up on shared hosting in GPX Mumbai
●Multidomain Linux Hosting with cPanel
●Jmeter automated tests from Mumbai India
○ 1000 page requests
○ 5 concurrent threads
○ Every user requesting the page 200 times
●Page contains Multiple Images, Content, Comments
●Page size 354 KB
Pre Optimization
Pre-optimization setup●Wordpress 4.7.2
●Plugins
○ Fakerpress
○ Akismet
○ Hello Dolly
●1000 requests with 5 thread and 200 request per thread
●2000 requests with 10 thread and 200 request per thread
Pre-optimization setup
Post Optimization (Phase 1)
Post-optimization (Phase 1)●Wordpress 4.7.2
●Plugins
○ Fakerpress
○ Akismet
○ W3 Total Cache
○ WP Smush
○ WP Optimize
●1000 requests with 5 thread and 200 request per thread
●2000 requests with 10 thread and 200 request per thread
Post-optimization (Phase 1)
Post Optimization (Phase 2)
Post-optimization (Phase 2)●Wordpress 4.7.2
●Plugins
○ Fakerpress
○ Akismet
○ W3 Total Cache
○ WP Smush
○ WP Optimize
●Enabled Varnish caching on the package
●2000 requests with 10 thread and 200 request per thread
Post-optimization (Phase 2)
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