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Key learnings from hosting 1000+ WordPress sites
- 1. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup WordPress Performance Key learnings from hosting 1000+ WordPress sites Thomas Audunhus Country Manager @ Servebolt
- 2. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Novice Expert
- 3. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup And why is speed important?
- 4. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Because the users of the internet says so! … and Google
- 5. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup
- 6. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Rendering and browser code HTML, CSS & .js Server-side code PHP Database MySQL What affects load time?
- 7. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Time to first byte (TTFB) Time from the server receives a request, until the first byte is delivered. Recommended: <600ms
- 8. WordPress Performance by Thomas Audunhus What do most developers do to speed up WordPress? 1. Minification of code (grunt, gulp etc) 2. Install a plugin with “performance” or “speed” in the title 3. Set up caching everywhere 4. Adjust the code again, and again, to achieve a Pagespeed insights score of 100/100
- 9. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Whaaaaat? Not even Google?
- 10. WordPress Performance by Thomas Audunhus Implementing the suggestions should improve the relative performance of the page. “ - Google We use a variety of sources to determine the speed of a site relative to other sites. “ - Google
- 11. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup What makes WordPress slow?
- 12. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Bloated themes
- 13. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup “There is a plugin for that”
- 14. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup With Autoptimize Without Autoptimize
- 15. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Running more code != Better performance Doing more never results in faster finish
- 16. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup 0ms 1250ms 2500ms 3750ms 5000ms Them e:2017 Them e:Jupiter Dem o content Plugin:VC Plugin:Autoptim ize Added 100 postsPlugin:W oocom m ercePlugin:W ordfence
- 17. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup So, what to do? …and what not to do
- 18. WordPress Performance by Thomas Audunhus Be lean and mean with plugins 1. Plugins you don’t really need shouldn’t be installed. 2. Ensure that new plugins don’t mess with your time-to-first-byte (TTFB) 3. Kill page-builders like Visual Composer if you can 4. Kill security plugins (they are a security hazard anyway) 5. Kill slider plugins
- 19. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup I’m focused on performance, so I use caching on all sites“ Cool, the site is faster now! But.. it’s not Varnish fast.“
- 20. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Using page caching for performance
- 21. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup
- 22. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Caching
- 23. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Caching
- 24. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Caching Load balancer
- 25. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Caching == A scaling tool If you use caching for performance, you will not be able to use it for scaling.
- 26. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup PHP ERRORS
- 27. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Keep .htaccess clean Don’t setup redirects in htaccess. # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^index.php$ – [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> # END WordPress
- 28. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Hardcoding Nooooo… hardcoding is bad! Or?
- 29. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup MyISAM -> InnoDB Stop using MyISAM as DB engine, and switch to InnoDB or Aria
- 30. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Large _options table? ALTER TABLE wp_options ADD INDEX autoload_idx (`autoload`);
- 31. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup Stay up to date on technology
- 32. WordPress Performance by Thomas Audunhus New technology 1. Compiles PHP into byte code 2. Caches the compiled byte code 2-3x faster OPcache
- 33. WordPress Performance by Thomas Audunhus 4 connections HTTP2 New technology
- 34. WordPress Performance by Thomas Audunhus HTTP2 1 connection New technology
- 35. WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup ~40% faster New technology
- 36. WordPress Performance by Thomas Audunhus The takeaway • Check if your changes to the site had an impact on ttfb • Make the error log your todo list • Don’t rely on caching for performance • Move to PHP 7 • Remember that performance is a continuous task
- 37. Thank you! WordPress Performance by Thomas Audunhus @ Oslo WordPress Meetup