Dependency Minification vs EWWW Image Optimizer

This plugin takes all scripts and stylesheets that have been added via wp_enqueue_script and wp_enqueue_style and automatically concatenates and minifies them into logical groups. For example, scripts in the footer get grouped together and styles with the same media (e.g. print) get minified together. Minification is done via WP-Cron in order to prevent race conditions and to ensure that the minification process does not slow down page responses. This is a reincarnation and rewrite of the Optimize Scripts plugin, which this plugin now supersedes. Features: Minified sources are stored in the WP Options table so no special filesystem access is required. Endpoint for minified requests is at /_minified, which can be configured. Admin page for taking inventory of minified scripts and stylesheets, with methods for expiring or purging the cached data. Dependencies which must not be minified may be excluded via the dependency_minification_excluded filter. Dependencies hosted on other domains are by default excluded, but this behavior can be changed by filtering the default_exclude_remote_dependencies option via the dependency_minification_options filter, or on a case-by-case basis via the filter previously mentioned. By default excludes external scripts from being concatenated and minified, but they can be opted in via the dependency_minification_excluded filter. The length of time that a minified source is cached defaults to 1 month, but can be configured via the cache_control_max_age_cache option. If a minified source is not available yet, the page source will note that the dependency minification process is pending. Any errors that occur during minification will be shown on the frontend in comments if the show_error_messages option is enabled; such errors are enabled by default if WP_DEBUG. If the minification process errors out, the original unminified sources are served and the error is cached for 1 hour (by default, configured via cache_control_max_age_error) to prevent back-to-back crons from continually attempting to minify in perpetuity. Cached minified sources are served with Last-Modified and ETag responses headers and requests will honor If-None-Match and If-Modified-Since to return 304 Not Modified responses (configurable via the allow_not_modified_responses option). Data attached to scripts (e.g. via wp_localize_script) is also concatenated together and attached to the newly-minified script. WP-Cron is utilized to initiate the minification process in order to prevent race conditions, and to ensure that page responses aren’t slowed down. Stale minified scripts and stylesheets remain until replaced by refreshed ones; this ensures that full-page caches which reference stale minified sources won’t result in any 404s. Can serve compressed responses with gzip or deflate. Transforms relatives paths in stylesheets (e.g. background-images) to absolute ones, so that they don’t 404. Development of this plugin is done on GitHub. Pull requests welcome. Please see issues reported there before going to the plugin forum. If you are using Nginx with the default Varying Vagrant Vagrants config, you’ll want to remove css|js from this rule in nginx-wp-common.conf (or remove the rule altogether): # Handle all static assets by serving the file directly. Add directives # to send expires headers and turn off 404 error logging. location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ { expires 24h; log_not_found off; }

Are you frustrated by a slow website? Do over-sized images make you say “ewww”… Image optimization with EWWW Image Optimizer helps you make your site faster, improve your bounce rate, and boost your SEO. But most importantly, make your visitors happier so they keep coming back for more. Why use EWWW Image Optimizer? Get all this for free: Unlimited image optimization to compress images of any size Local image optimization mode compatible with most web hosts Lossless JPG, PNG, GIF, and SVG image optimization (8% average savings) WebP conversion compatible with all web hosts (60% average savings) Optimize images from any plugin Image Detective to help you identify improperly scaled images and better optimize LCP images Resize images at upload or in bulk Lazy Load with auto-scaling for responsive images–uses properly-sized placeholders to prevent layout shift (CLS) Sharpen thumbnail images for better quality Adjust JPG and WebP quality (AVIF quality configurable in premium) Control creation and optimization of individual WordPress thumbnails Convert images to the best format (GIF to PNG, PNG to JPG or vice versa) Local image backups Preserve GIF animations in thumbnails Free email support EWWW Image Optimizer is the only plugin that lets you optimize images using tools on your own web server (jpegtran, optipng, pngout, pngquant, gifsicle, cwebp). This requires the PHP exec() function and a compatible Linux, Windows, MacOS, or FreeBSD web server. If your web server is not compatible, we offer unlimited lossless JPG image optimization and WebP conversion via our Compress API for free. Upgrade to Premium for: 5x premium image optimization PDF optimization Automatic scaling for all images, even those in external CSS One-click WebP & AVIF conversion and delivery Enhanced responsive images that use correct dimensions for all devices WebP image optimization Deliver High-DPI images to devices with 2x and 3x screens (retina) Watermark images CDN delivery for images, CSS, JS, and fonts with custom domain name option 30-day cloud-based backups Premium support Premium plans include SWIS Performance plugin with: Page caching Enable browser caching with long cache lifetimes Defer JS/CSS to eliminate render blocking requests Minify JS/CSS Critical CSS generation to prevent layout shifting (CLS) Optimize font display/self-host Google fonts Preload assets like fonts and LCP images Reduce unused JS/CSS Manage speculative loading Automatic Everything Optimize images on your entire site with a single click. With Easy IO CDN, images are automatically compressed, scaled to fit the page and device size, lazy loaded, and converted to next-gen WebP and AVIF formats. Support We provide free one-on-one email support to everyone. Do you have an idea to make EWWW Image Optimizer even better? Share it and vote on future features! Found a bug? Report the issue on GitHub, and we’ll get it fixed! You may report security issues through our Patchstack Vulnerability Disclosure Program. The Patchstack team helps validate, triage and handle any security vulnerabilities. Report a security vulnerability. Bulk Optimize Optimize images, all from a single page. This includes the Media Library, your theme, and a handful of pre-configured folders (see Optimize Everything Else below). GRAND FlaGallery, NextCellent and NextGEN have their own Bulk Optimize pages. Optimize Everything Else Configure any folder within your WordPress install to optimize images. The Bulk Optimizer will compress theme images, BuddyPress avatars, BuddyPress Activity Plus images, Meta Slider slides, WP Symposium Pro avatars, GD bbPress attachments, Grand Media Galleries, and any user-specified folders. You can also use Scheduled optimization or run the optimizer from WP-CLI if that’s more your thing. Plugin Compatibility EWWW Image Optimizer has been tested with thousands of plugins and themes, here are just a few of the most common ones: BuddyPress (Activity Plus add-on too), Cloudinary, Easy Watermark, FileBird, FooGallery, GD bbPress Attachments, GRAND FlAGallery, Gmedia Photo Gallery, MediaPress, Meta Slider, Microsoft Azure Storage, MyArcadePlugin, NextGEN Gallery, Regenerate Thumbnails, Weglot, WP Offload Media, WPML, WP Retina 2x, WP RSS Aggregator, WP Symposium, and more… WebP Images If you want simple, get automatic WebP conversion with Easy IO, and be done with it! Otherwise, you can generate WebP versions of unlimited images with the Bulk Optimizer. Deliver them to supported browsers with Apache-style rewrite rules, JS WebP Rewriting, or Picture WebP Rewriting. EWWW Image Optimizer even works with the WebP option in the Cache Enabler plugin from KeyCDN. AVIF Images AVIF conversion is built into the Easy IO CDN. Once your site is setup with Easy IO, edit the site settings to enable AVIF, and you’re done! WP-CLI Allows you to run all batch image processes from the command line, instead of the web interface. Optimize images even faster, run it in ‘screen’ or via regular cron (instead of wp-cron, which can be unpredictable on low-traffic sites). Install WP-CLI from wp-cli.org, and run ‘wp-cli.phar help ewwwio optimize’ for more information or see the Docs. CDN Support WP Offload Media is the officially supported (and recommended) plugin for uploads to Amazon S3, Digital Ocean Spaces, and Google Cloud Storage. Check our compatibility list for details on other plugins. All pull mode CDNs like Cloudflare, KeyCDN, Bunny CDN and Sucuri work automatically, but you will need to purge the CDN cache after you optimize images with bulk optimization. Client-Side Media Processing EWWW IO is fully compatible with browser-based thumbnail generation, but if you encounter any issues, you may disable the in-browser image handling in Ludicrous Mode. Translations Huge thanks to all our translators, see the full list! If you would like to help translate this plugin, join the team. Signup to receive updates when new strings are available for translation. Credits Written by Shane Bishop with special thanks to my Lord and Savior. Based upon CW Image Optimizer, which was written by Jacob Allred at Corban Works, LLC. CW Image Optimizer was based on WP Smush.it. Jpegtran is the work of the Independent JPEG Group. PEL is the work of Martin Geisler, Lars Olesen, and Erik Oskam. Easy IO and HTML parsing classes based upon the Photon module from Jetpack.