Swift Performance Lite vs DietPress

The need for Speed. Cache & Performance plugin for WordPress! You created it, we keep it fast! Did you know that…… You Have Just 3 Seconds To Impress Your Visitor. Don’t Lose It By Slow Loading. 95% of customer’s don´t wait if a website takes longer than 5-6 seconds to load! Yes, that´s a big number. People spend a lot of time and money on building websites and even more on marketing to get traffic… but what happens when those people come to your website and the website is slow to load? You lose sales. Slow loading websites lose visitors and sales. But we have a solution! Say goodbye to slow loading websites and say hello to Swift Performance Lite or Pro! Get a complete Cache & Performance plugin for free or as a pro. Swift Performance will increase the loading speed of any WordPress website and provides an intelligent, modern caching system. You can even cache AJAX request, dynamic pages, and you can add exceptions (URL, page or content based rules). Here are some of our most popular functions. Caching. Page caching is working out of the box. It is compatible with WooCommerce, bbPress, Cloudflare and Varnish as well. It will boost your performance, improve SEO scores, and create a better user experience. CSS and Javascript optimization. One of the most important thing for performance is optimize the delivery of static resources. Swift Performance not only combines and minifies the CSS files, but generates the Critical CSS for each page automatically. Also Javascripts (even inline scripts) can be combined, minified, and move to footer without any conflict. Huge combined javascript files may still be render blocking, however with our unique Async Execute solution, you can not only combine/minify the scripts, but you can run them individually as soon as a chunk has been downloaded – which provides incredibly fast JS execution, improves SEO scores and user experience. Database Optimization. Keeping your database clean is extremely important for speed. Swift Performance has a built in DB Optimizer to clean expired transients, orphans, duplicated metadata, and spammy comments. You can also schedule every tasks. It has never been easier to keep your WordPress database clean. Plugin Organizer. Plugins are a big part of WordPress, however sometimes not properly written plugins can cause performance issues. With Plugin Organizer you can disable plugins on certain pages, and let plugins run only where it is really necessary. You can set URL match, Frontend, Admin Pages, AJAX action rules and exceptions to get the best results. Why you should install Swift Performance Lite? After reading this exhaustive features, you can probably imagine why Swift Performance is the best Cache & Performance solution for WordPress. It is both easy and powerful. Optimizing WordPress performance is not rocket science anymore. Our unique Setup Wizard will help you to configure the basic settings and improve WordPress performance. We hear your voice! We are continuously improving the plugin, based on customer’s feedback & needs. This is one of the most important factors & mission. Give Swift Performance a try. Want to unlock more features? Upgrade to our Pro version. Why should you upgrade to Pro? We added our secret ingredients to make a product for our professional users, the result is Swift Performance Pro. Compute API. Compute API will speed up merging process and decrease CPU usage. Compute API also provides advanced JS minify, which should be used if default JS minification cause issues on your site. Compute API also provides Critical Font option, with that you can reduce font icon files’ size. This feature is essential for shared hosting users, as CPU usage is usually limited for shared hosting plans. Critical Icon Fonts. With Critical Fonts feature you can select icons that you are actually using on your site, and generate customized icon font set from them. There is also a feature to search used icons in your theme/plugins, posts, options, etc. Once you selected the icons that you need, you can enqueue them with one click. If critical icon fonts are enqueued, the plugin will block the original version of the font CSS/font files. Unlimited Image Optimizer. With Image Optimizer you can optimize every images on your site. It will scan the whole site, and pick up every image from themes, plugins and upload folder. Regarding that Image Optimizer is unlimited (no additional fees), you can save a considerable amount of money. You can select images individually, and run batch optimization. Default image quality can be specified in plugin settings, however you can overwrite it before starting the optimization on selected images. Schedule DB Optimizer. Both Pro and Lite versions comes with Database Optimizer. However in Pro you can set scheduled optimization, so you won’t need to do it manually. Whitelabel. With whitelabel option you can re-brand Swift Performance. You can change the plugin name, description, author, even the database prefix for the plugin. Remote Cron. Pro version provides a Remote Cron option. If you set the remote cron, our API server will call wp-cron.php and run WP cronjobs as real cronjobs. Extended WooCommerce Features. With Pro version you can’t just cache, but totally disable cart fragments AJAX calls. Pro also provide session cache, with that you can cache and preload dynamic pages like cart and checkout page for WooCommerce. Continuous Plugin Updates. While Swift Performance Lite is maintained as well, these updates are only compatibility updates, however Pro version comes with regular updates which contains new features. Also Pro version has a Beta tester option, if you enable it, you will get updates more frequently. FAQ Installation instructions Upload the plugin files to the /wp-content/plugins/ directory, or install the plugin through the WordPress plugins screen directly. Activate the plugin through the ‘Plugins’ screen in WordPress Run the Setup wizard, or use the Tools->Swift Performance screen to configure the plugin Why should I use Swift Performance plugin? Swift Performance is an all-in-one WordPress performance booster plugin. It provides everything that you need to speed up your WordPress site (replacing several optimization plugins), and improve user’s website experience. Swift Performance is already running on 2.000+ websites and based on our customers’ feedback it is the fastest performance plugin on the market. With the Setup Wizard you can easily configure the plugin and in the same time you have power of setup & control of all settings manually. Strange redirects If you have strange URLs in your analytics or you can see that the site redirects to an URL like this: https://www.yoursite.com/wp-content/cache/yoursite.com/desktop/unauthenticated/index.html This is caused by an improper order of htaccess rules. Probably you are using a force SSL or force www/non-www rule in htaccess. Please remove these rules from .htaccess, and insert them in Settings > General > Tweaks > Custom htaccess. My website broke It is possible that one or multiple files generate conflicts when those are merged and/or minified. If you notice that you website doesn´t show correctly, you might disable merge scripts and styles. High CPU Usage While Swift is generating the cache, the CPU usage can be higher than usual. Swift is using more aggressive optimization than any other plugin on the market and it needs some CPU. Usually it isn’t an issue and CPU usage can be increased temporarily, but if it goes back to normal after prebuild finished, you don’t need to worry about it. However, for large sites on relatively small server it can cause too high CPU usage temporarily. Actually, when the server is using CPU it is always using 100%. High usage means the CPU was used for a longer period. If CPU usage is constantly higher you may need check the configuration. It is recommended to: Enable Compute API: Settings > General > Compute API Enable Optimize Prebuild Only: Settings > Optimization > General > Optimize Prebuild Only If you are not satisfied with Optimize Prebuild Only option, enable Optimize in background instead: Settings > Optimization > General > Optimize in Background. Setting a low number of threads as maximum: Settings > Optimization > General > Maximum threads: set this to 2 or 1. 1 will make the pre-build a bit slow, so try 2 first. Exclude third party CSS: Settings > Optimization > Styles> Exclude 3rd Party CSS. Disable Generate Critical CSS as generating Critical CSS is the most CPU intensive process: Settings > Optimization > Styles> Generate Critical CSS. Exclude third party JS: Settings > Optimization > Scripts > Exclude 3rd Party Scripts. Set Cache Expiry Mode to Action based, if you are not using nonce or anything that can expire on frontend: Settings > Caching > General > Cache Expiry Mode: Action based. Enable Prebuild Cache Automatically: Settings > Caching > Warmup > Prebuild Cache Automatically. Setup lower Limit prebuild speed (recommended to use on limited shared hosting): Settings > Caching > Warmup > Prebuild Speed: Moderate (or Slow). Exclude post types that you wouldn’t like to cache. Autoconfig should find most and exclude them automatically but you can can add them manually: Settings > Caching > Exceptions> Exclude Post Types. Key Features Quick Setup, Page Cache, Cache Preloading, Gzip Compression, Browser Caching, Remove Query Strings, Lazyload, Minify CSS, Minify JS, Combine JS/CSS, Async Execute Combined JS, Defer JS, CDN Support, Cloudflare Support, Varnish Support, Mobile Detection, Multisite Compatibility, Woocommerce Friendly, WPML Support, Cache For Logged In Users, Database Optimizer, Import/Export, DNS Prefetch, Critical CSS On The Fly, Plugin Organizer, Appcache, AJAX Cache, Proxy 3rd Party JS, Inline Small Images, Google Analytics Bypass, Heartbeat Control Reviews Swift Performance Review by WPMediaMastery Swift Performance Comparison by Alentejo Webdesign Easy Setup

DietPress is a free WordPress speed optimization plugin with a built-in page cache. Page caching, browser caching, GZIP and Brotli compression, deferred JavaScript, critical CSS, image loading attributes, preloading, locally hosted Google Fonts and selective asset loading, all in one plugin and all free. And it goes further than a caching plugin: it also puts WordPress itself on a diet, switching off the features your site never uses. It pairs that with a clean, risk-based interface. Everything is configurable, the optimizations are already on by default, and nothing is hidden behind a paid tier. Activate it and your site is faster, or open the settings and tune every detail. By default WordPress loads functions, services and scripts that most sites do not need. They slow down loading times and consume hosting resources. DietPress lets you trim that fat and apply battle-tested performance tweaks, with a clear description of what each option does and what might break, organized by risk level so you always know what is safe. WHY CHOOSE DIETPRESS Page caching, for free. Serve anonymous visitors a copy stored on disk instead of building the page again. The feature people buy WP Rocket or a NitroPack subscription for, with no licence and no monthly fee. No drop-in, no changes to wp-config.php. Unlike WP Super Cache or W3 Total Cache, DietPress installs no advanced-cache.php and never edits wp-config.php. Switching it off leaves your site exactly as it was, with nothing orphaned behind. It tells you why. Most cache plugins leave you guessing when nothing is cached. DietPress reports its own status, tests itself against your home page, and names the exact reason a page was skipped. WooCommerce-safe by design. Carts, checkout, my account and any visitor carrying a cart cookie always get the live site, so nobody ever sees somebody else’s basket. Diet as well as speed. Where Perfmatters focuses on disabling scripts, DietPress covers that ground and adds page caching, critical CSS, local Google Fonts and a dashboard, admin and email cleanup, in one plugin. Light on your server. No account, no external service, no telemetry, no upsell nags. Everything runs on your own hosting. WHAT THE PAGE CACHE DOES TO YOUR RESPONSE TIME Measured on a WordPress 7.0 install with GeneratePress, WooCommerce and a 76 product catalogue, PHP 8.5, taking the median of 15 requests per URL. Your own hosting will give different figures, but the shape of the result will not change. Server response time, the same pages with the page cache off and on: Home page – 52.7 ms without, 15.1 ms with, 71% faster WooCommerce shop – 45.4 ms without, 14.8 ms with, 67% faster A 110 KB article – 43.0 ms without, 15.1 ms with, 65% faster A 98 KB page – 41.0 ms without, 14.9 ms with, 64% faster A product category – 41.3 ms without, 15.1 ms with, 63% faster The interesting part is not the percentage, it is that the cached figure barely moves. Serving a stored file costs the same whether the page was cheap or expensive to build, so the saving grows with the size of your site rather than with the power of your server. The heaviest page in the test is the one that gained most. It also changes how much traffic your hosting can take at once. In the same test the server went from serving about 40 visits a second to more than 210, five times as many, on exactly the same plan. That is what keeps a small site standing up when one of your posts does well. TWO THINGS IN ONE PLUGIN 1. Performance optimizations (on by default) Automatic Critical CSS inlined in the head (optional experimental deferral of non-critical CSS) JavaScript defer parsing with smart dependency handling Image loading attributes safety net: lazy loading, decoding=async and fetchpriority for images that bypass core Automatic image dimensions for better CLS scores (including picture elements) Resource hints: preconnect and DNS prefetch for common third-party origins Theme stylesheet, critical fonts and logo preloading for a faster LCP Google Fonts display=swap Google Fonts local hosting: serve the fonts your theme uses from your own server, GDPR-friendly with a silent fallback to the Google CDN (opt-in) Selective third-party loading: WooCommerce, Contact Form 7, block library, Slider Revolution, TablePress, Smash Balloon, Formidable Forms and Everest Forms assets only load where they are used (opt-in) RSS feed optimization (cache headers and item limit) Server rules in .htaccess: browser caching with a configurable lifetime for media, for styles and scripts and for fonts, GZIP and Brotli compression, immutable cache headers, CORS for fonts and keep-alive (master switch plus per-feature toggles) Database maintenance: daily expired-transient cleanup and safe query optimizations Page cache: store each page on disk and serve it to anonymous visitors without building it again, with automatic purging, gzip precompression and a status panel that says whether it is working (opt-in, in its own tab) 2. Put WordPress on a diet (risk-based, opt-in) Light (safe for any site): emojis, RSD/WLW tags, shortlinks, self-pingbacks, comment pagination, and more Moderate (evaluate first): oEmbed, jQuery Migrate, Dashicons on the frontend, Global Styles and Duotone, remote block patterns, avatars and Gravatar, comment threading, and more Strict (site-specific): granular RSS feed control, Heartbeat API mode, post revisions and autosave, disable comments, XML sitemap, native lazy loading/fetchpriority, content types, selective loading for WooCommerce, Contact Form 7, block assets, Slider Revolution, TablePress, Smash Balloon, Formidable Forms and Everest Forms, and more Widgets: dashboard widgets (including third-party ones from Yoast, WooCommerce, Elementor, Jetpack, Wordfence, Rank Math, Gravity Forms), classic sidebar widgets, block-editor widgets and the Customizer Emails: silence the automatic emails WordPress sends on its own, grouped by area: auto-update results for core, plugins and themes (plus the new-version notice), comment moderation and new-comment notices, and new user, password and email-change notices, plus toggles for the admin email verification prompt and post-by-email. Every option is off by default, and critical notices such as a failed core update are always kept SCALE, PROFILES AND ANALYZER Savings indicator: HTTP requests removed, CSS/JS saved and active optimizations at a glance Quick profiles: Personal Blog, WooCommerce Store, Landing Page and Maximum Cleanup Site analyzer: personalized recommendations based on your active plugins and content, page cache included Import and export your whole configuration as a JSON file COMPATIBILITY AND EXTENSIBILITY The plugin includes filters for developers: dietpress_critical_css – Customize the inline critical CSS dietpress_critical_css_handles – Define which CSS handles are critical dietpress_skip_defer_script_handles – Opt scripts out of the JavaScript defer dietpress_skip_defer_style_handles – Opt stylesheets out of the CSS deferral dietpress_preconnect_hints – Customize preconnect origins dietpress_dns_prefetch_domains – Customize DNS prefetch domains dietpress_critical_fonts – Define critical fonts to preload dietpress_exclude_local_fonts – Exclude Google Fonts stylesheets from local hosting dietpress_selective_{module}_has_content – Mark a page as showing the content of a selective loading module, so its assets are kept. The module is wc, cf7, formidable, everest_forms or revslider dietpress_selective_{module}_styles / dietpress_selective_{module}_scripts – Adjust the handles removed by each module dietpress_selective_page_hides_content – Mark a page as rendering content the content scan cannot reach, so no module removes anything (this is what handles Elementor) dietpress_selective_is_wc_page – Override the WooCommerce page detection of selective loading dietpress_selective_wc_keep_cart_fragments – Keep the cart fragments script when your theme has a hand-coded mini-cart dietpress_selective_cf7_has_form – Mark pages that load a Contact Form 7 form dynamically dietpress_selective_blocks_dequeue – Override the block library dequeue decision dietpress_selective_everest_forms_dequeue_dashicons – Keep Dashicons when another plugin enqueues it directly dietpress_native_sitemap_in_use – Tell DietPress your plugin builds on the native WordPress sitemap, so the option that removes it becomes unavailable dietpress_cache_bypass – Keep the current page out of the page cache dietpress_cache_bypass_cookies – Adjust the cookie name prefixes that make a visitor uncacheable dietpress_cache_ignored_params – Adjust the query parameters that do not change the page dietpress_cache_exclude_urls – Adjust the excluded URL patterns dietpress_cache_post_urls – Adjust the URLs purged along with a post Compatible with: Well-coded themes and page builders (Divi, Elementor, Beaver Builder, Bricks Gutenberg) Cache plugins (WP Rocket, LiteSpeed Cache, W3 Total Cache, WP Super Cache, etc.). The one exception is the optional page cache module, which will not run beside another page cache and says so; everything else in DietPress works alongside them as it always has Security plugins (DietPress focuses on performance and deliberately leaves security to them; we recommend our free Vigilant) CDNs (Cloudflare, StackPath, KeyCDN, etc.) thanks to CORS and Vary headers WordPress Multisite (except the optional page cache module, which does not support it yet) HOW TO VERIFY THE OPTIMIZATIONS Cache rules: check your .htaccess for a block marked # BEGIN DietPress with immutable Cache-Control headers Logo preload: view page source and look for pointing to your logo Critical CSS: view source and look for in the head Compression: test at giftofspeed.com/gzip-test Always measure with tools like Google PageSpeed, GTMetrix or WebPageTest, and run each test at least twice to account for caching. Support Need private support or custom development? Do you need one-on-one help, priority troubleshooting, or a custom feature, integration, or tweak built specifically for your site? I offer private support and custom development. Just contact me and tell me what you need. Need help or have suggestions? Official website WordPress support forum YouTube channel Documentation and tutorials Love the plugin? Please leave us a 5-star review and help spread the word! About AyudaWP We are specialists in WordPress security, SEO, AI and performance optimization plugins. We create tools that solve real problems for WordPress site owners while maintaining the highest coding standards and accessibility requirements.