{"id":167,"date":"2019-11-21T19:28:00","date_gmt":"2019-11-22T00:28:00","guid":{"rendered":"http:\/\/127.0.0.1:8080\/?p=167"},"modified":"2024-01-13T14:00:19","modified_gmt":"2024-01-13T19:00:19","slug":"cache-and-speed-for-wordpress","status":"publish","type":"post","link":"http:\/\/10.42.0.68:8080\/blog\/cache-and-speed-for-wordpress","title":{"rendered":"Cache and speed for WordPress"},"content":{"rendered":"\n<p>Sometimes, it&#8217;s quicker to use WordPress instead of another system to do a blog.<br>Now, it&#8217;s time to have a cache and gain good improvement in rendering.<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">1. The right web server<\/h2>\n\n\n\n<p>I use <a href=\"https:\/\/www.nginx.com\/\">Nginx<\/a> with <a href=\"https:\/\/www.php.net\/manual\/en\/install.fpm.php\">PHP-FPM<\/a> to be the secure base: 2019, no more Apache2<\/p>\n\n\n\n<p>It&#8217;s also possible to implement cache at the Nginx level but I don&#8217;t use it. I prefer improvement related to metrics.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. JS\/CSS\/HTML optimizer (optional)<\/h2>\n\n\n\n<p>I tested <a href=\"https:\/\/wordpress.org\/plugins\/autoptimize\/\">Autoptimize<\/a> and finally, it&#8217;s interesting when you use <a href=\"https:\/\/wordpress.org\/plugins\/elementor\/\">Elementor<\/a>.<br>This blog doesn&#8217;t use Autoptimize because during the test: 0kB\u2026 impossible to optimize more.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. In-memory caching<\/h2>\n\n\n\n<p>It&#8217;s time to use <a href=\"https:\/\/redis.io\/\">Redis<\/a> with <a href=\"https:\/\/wordpress.org\/plugins\/redis-cache\/\">Redis Cache<\/a>.<\/p>\n\n\n\n<p>WordPress will refresh the cache inside Redis after posting, and commenting\u2026 and all readers will go to Redis. It&#8217;s a good improvement and a new way to not use Varnish or Nginx cache immediately.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. CDN<\/h2>\n\n\n\n<p>It&#8217;s the last step with <a href=\"https:\/\/www.cloudflare.com\/\">Cloudflare<\/a>.<br>The free version works great for personal sites\/blogs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other improvements<\/h2>\n\n\n\n<p>What are the next possible steps to improve performance:<\/p>\n\n\n\n<ul>\n<li>replace PHP-FPM with HHVM<\/li>\n\n\n\n<li>replace WordPress code (core + plugin) to read from Redis by Lua code directly inside the Nginx configuration<\/li>\n\n\n\n<li>activate Nginx cache<\/li>\n\n\n\n<li>Migrate WordPress to a static website (Jekyll, Hugo)<\/li>\n\n\n\n<li>Build a 2-step prod :<br>\u2013 edit and publish to WordPress offline (internal)<br>\u2013 CI\/CD to convert WordPress to a static website and push rendered static website to a public server<\/li>\n<\/ul>\n\n\n\n<p>Don&#8217;t forget to <a href=\"\/no-unauthorized-access-to-wordpress-admin\/\">protect your WordPress<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sometimes, it&#8217;s quicker to use WordPress instead of another system to do a blog.Now, it&#8217;s time to have a cache and gain good improvement in rendering.<\/p>\n","protected":false},"author":1,"featured_media":76,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"saved_in_kubio":false,"footnotes":""},"categories":[17],"tags":[22,23,24,25],"_links":{"self":[{"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/posts\/167"}],"collection":[{"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/comments?post=167"}],"version-history":[{"count":1,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/posts\/167\/revisions"}],"predecessor-version":[{"id":168,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/posts\/167\/revisions\/168"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/media\/76"}],"wp:attachment":[{"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/media?parent=167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/categories?post=167"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/10.42.0.68:8080\/wp-json\/wp\/v2\/tags?post=167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}