Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vs Registration

Registration Email Blocker decides which email domains are acceptable on your site. Run it as a blocklist to refuse the providers you name, or as an allowlist to accept only the ones you approve. The check is applied everywhere an address can be set, not only on the registration form: the WordPress registration form the profile screen and “Add New User” in wp-admin the WordPress REST API WooCommerce registration the WooCommerce checkout, both the classic shortcode and the newer block based checkout the “Account details” page of the WooCommerce My Account area Checking email changes matters as much as checking registration. If only the registration form is guarded, an account can be created with an accepted address and switched to any other one a minute later. That option is on by default and can be turned off. What it does Two modes. Blocklist refuses the domains you list; allowlist accepts only the domains you list. Subdomains are matched in both directions, so listing example.com also covers mail.example.com. Two levels of strictness. Refuse the address outright, or allow it and record the attempt. Internationalized domains. Names such as почта.рф are converted to their punycode form when saved, so they match real addresses. Entries that are not valid domain names are reported back to you rather than silently dropped. Administrators are exempt by default, so a mistake in a domain list cannot lock you out of your own site. Report on existing accounts. See which accounts use a rejected domain, grouped by domain, and export the list as CSV. Batched notifications. Ask affected users to change their address. Mail is sent in small batches with a progress bar and a stop button, and anyone notified recently is skipped, so a timeout cannot restart the run from the beginning. A log you can live with. Attempts are recorded with a configurable level of detail, kept only as long as you choose, and trimmed automatically once a day. Repeated attempts from the same IP address within a minute are recorded once, so a bot cycling through addresses cannot inflate the table. Editable defaults. Both domain lists ship pre-filled and can be changed freely; a button restores them to the versions shipped with the plugin whenever you want the newest entries. Privacy The plugin stores registration attempts in a table in your own database. Nothing is sent anywhere else, and no external service is contacted. You decide how much is kept: email addresses in full, partially masked, reduced to the domain, or not stored at all IP addresses in full, anonymized, or not stored at all a retention period after which entries are deleted automatically The plugin registers a personal data exporter and eraser, so log entries are included in the export and erasure requests WordPress produces under Tools → Export/Erase Personal Data, and it suggests text for your privacy policy. The connection address is used by default; forwarded headers such as X-Forwarded-For are trusted only if you state that the site is behind a reverse proxy, because a visitor can otherwise put any value there. A note on what a blocklist can do A blocklist only refuses the domains you thought of. Somebody who wants an account will find a provider that is not on the list. When the set of acceptable providers is actually known, the allowlist is the mode that holds. The plugin is a technical control over email domains. It does not by itself make a site compliant with any particular legislation, and the site owner remains responsible for their own legal obligations. Russian Federal Law 406-FZ The plugin was originally written for Russian site owners working towards Federal Law No. 406-FZ, which requires authorization through a phone number, ESIA, a biometric system or another Russian-controlled system. This plugin implements none of those. It only controls the email domain used at registration, which the law does not address directly. Treat it as one piece of housekeeping, not as a compliance solution, and take legal advice about your own obligations. Support Questions and bug reports are welcome on the plugin’s support forum on WordPress.org. Developer: Studio Playner — https://profiles.wordpress.org/altcreative/ Support Development This plugin is free and will stay free. If it saves you time, you can support its development through YooKassa. Contributions go towards new features, compatibility with new WordPress and WooCommerce releases, and answering support questions. License This plugin is licensed under the GPL v2 or later. Copyright (C) 2026 Studio Playner This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

Compress images, optimize images, and enable image lazy load automatically with the powerful Smush image optimizer to keep your WordPress site fast, without losing quality. Smush makes it easy to optimize images, compress images, and deliver images faster across your entire WordPress site. This all-in-one image optimizer automatically reduces image file sizes, enables image lazy load, and serves modern formats like WebP and AVIF, all without breaking image quality or adding extra work. Whether you’re running a blog, store, or portfolio, Smush helps you optimize images at scale and keep your site fast with a trusted WordPress image optimizer. Trusted by 1+ Million Sites | 4.8/5 Star Rating Get everything you need to optimize images and speed up your site. Smush works out of the box with no complicated setup – just install and let it handle the rest. Compress images without losing quality Reduce image file size automatically while keeping your images sharp and clear. Smush is an easy-to-use image optimizer which let’s you compress images using both lossless and lossy compression, giving you the best balance of quality and performance without extra work. You can also compress images outside the media library using Directory Smush, making it easy to optimize images stored in theme folders, plugins, or other directories on your server. Lazy load images for faster pages Enable image lazy load across your site so images load only when needed. This image optimizer improves initial page speed and creates a smoother experience for visitors without extra configuration. Serve WebP and AVIF images automatically (PRO) Convert images to WebP and AVIF and serve them automatically to supported browsers. Smush helps you optimize images using next-gen formats to reduce file size and improve load times across your WordPress site. Deliver images faster with an Image CDN (PRO) Serve images through a global image CDN to reduce latency and improve load times for visitors around the world. 119 global CDN servers Up to 500 GB of bandwidth Faster image delivery based on visitor location Improved performance for image-heavy and high-traffic sites Automatically resize and fix image dimensions (PRO) Eliminate common PageSpeed warnings and improve layout stability with automatic image sizing. Smush dynamically resizes images to perfectly fit their containers, regardless of original size, helping fix the “Properly size images” warning in Google PageSpeed Insights. It also automatically adds missing width and height attributes to your images, improving rendering speed and reducing layout shifts. This helps you meet the “Ensure images have explicit width and height” recommendation without any manual work. Optimize your entire site, automatically Smush works across your whole site as a powerful image optimizer to optimize images as you upload them and maintain performance over time without manual work. Optimize images automatically on upload Compress images in bulk or individually Works with your existing media library No need to re-upload images Enable image lazy load across your site Convert images to WebP and AVIF Deliver images with an integrated image CDN Automatically resize and serve correctly sized images Optimize images outside the media library with Directory Smush Built for performance Smush improves page speed and overall performance by reducing image weight and improving how images are delivered. Reduce page load times Improve user experience Better performance for image-heavy pages Supports image lazy load and preload images (PRO) for faster perceived performance Works with your existing setup Smush is built to work with your current WordPress setup, including popular themes, page builders, and plugins. Compatible with Gutenberg, Elementor, WPBakery, and more Works with WooCommerce stores No need to change your workflow Easy to enable and configure Designed to be simple You don’t need to be a performance expert to optimize images with Smush image optimizer. Works out of the box Simple settings when you need them No technical knowledge required Safe to use on any site Why choose Smush? There are plenty of image optimization plugins, but Smush focuses on making it easy to optimize images, compress images, and improve performance without complexity. As a leading WordPress image optimizer, Smush gives you powerful optimization tools without the technical hassle. Trusted by over 1 million WordPress users Built specifically for WordPress Regular updates and improvements Backed by the WPMU DEV team Get started in minutes Install Smush, activate it, and start to compress images, optimize images, and enable image lazy load right away. This easy-to-use image optimizer helps most sites see improvements immediately without changing how they upload or manage images. About Us WPMU DEV is a premium supplier of quality WordPress plugins, services and support. Learn more here: https://wpmudev.com/ Don’t forget to stay up to date on everything WordPress from the Internet’s number one resource: WPMU DEV Blog Hey, one more thing… we hope you enjoy our free offerings as much as we’ve loved making them for you! Contact and Credits Originally written by Alex Dunae at Dialect (dialect.ca, e-mail ‘alex’ at ‘dialect dot ca’), 2008-11.