MBR Performance

MBR Performance is a powerful, all-in-one performance optimization plugin that gives you complete control over your WordPress site’s performance.

Features

Core Features
* Disable unnecessary WordPress features (emojis, embeds, dashicons, etc.)
* Control REST API access
* Manage heartbeat, revisions, and autosave
* Remove query strings for better caching
* WooCommerce script optimization
* XML-RPC and RSS feed control
* Disable the WordPress 7.0 AI Client, Abilities API and Connectors

JavaScript Optimization
* Defer and async JavaScript loading
* Move scripts to footer
* jQuery optimization and removal options
* Minify and combine JavaScript files
* Delayed script execution for analytics
* Remove script versions

CSS Optimization
* Async CSS loading
* Minify and combine CSS files
* CSS scanner for unused styles
* Google Fonts optimization and combining
* Conditional block styles loading
* Remove global styles and CSS versions

Font Optimization
* Preload critical fonts
* Self-host Google Fonts with auto-download
* Manual font management
* Font subsetting for reduced file sizes
* Preconnect to font domains
* Font Awesome optimization
* Font display strategies (swap, block, fallback, optional)
* Disable Google Fonts completely
* Elementor Google Fonts control
* Clear font cache functionality

Lazy Loading
* Native lazy loading for images
* Lazy load iFrames and embedded videos (YouTube, Vimeo, etc.)
* Exclude specific images from lazy loading by:
– CSS selectors
– Class names and IDs
– Data attributes
– Keywords in src or class
– Parent element selectors
* Smart exclusions to prevent breaking critical images

Preloading & Speculative Loading
* Preload critical images (LCP, hero images)
* Cloudflare Early Hints support (HTTP 103)
* Fetch Priority optimization
– Automatic high priority for first image
– Custom selectors for critical images
– Disable core WordPress fetch priority
* Speculative Loading for faster navigation
– Prefetch mode (fetch next page resources)
– Prerender mode (fully render next page in background)
– Configurable eagerness levels (conservative, moderate, eager)
– Auto mode for optimal performance

Database Optimization
* Post revision cleanup with configurable limits
* Auto-delete old drafts and trash
* Spam comment removal
* Orphaned metadata cleanup (posts, comments, terms, relationships)
* Transient management and cleanup
* Database table optimization
* Convert MyISAM tables to InnoDB
* Table repair functionality
* Scheduled automatic cleanups

WebP Image Conversion
* Convert JPG, JPEG, and PNG images to WebP format
* Automatic conversion on upload
* Bulk converter for existing Media Library images
* Configurable compression level (1–100)
* HTML tag delivery with automatic fallback
* Apache/LiteSpeed .htaccess rewrite rules
* Gutenberg and Elementor integration
* Server diagnostics panel
* Conversion history with bulk management
* Smart skip when WebP would be larger than original

Image Sizing & Dimensions
* Automatically resize oversized uploads to a configurable maximum dimension (default 2560px) to help fix the “Properly size images” PageSpeed Insights warning
* Preserves aspect ratio using the WordPress core scaling pipeline
* Adds missing width and height attributes to front-end images to help fix the “Ensure images have explicit width and height” warning
* Reduces Cumulative Layout Shift (CLS) by giving browsers aspect ratios up front
* Works on post content, Gutenberg blocks, Elementor widgets, attachment images and post thumbnails
* Dimension lookups cached per URL for a week (in-memory + transient) to keep the filter cheap
* Skips external images, SVGs and data URIs — only local files are measured
* Bulk resize tool for existing Media Library images — scan first, then downscale in place with progress bar and live log
* Automatic sub-size regeneration and stale WebP cleanup after each bulk resize

Orphaned Media Cleanup
* Scans the Media Library for attachments no longer referenced anywhere on the site — covering images, videos, audio, documents, and archives (configurable per scan)
* Detection covers post parents, featured images, post content (matching by attachment ID, shortcode reference and filename stem so sized variants and URL-only references are caught), and a string-search across postmeta values
* Two-tier confidence classifier — high-confidence orphans are eligible for bulk-delete, review-tier candidates require manual inspection
* Configurable restore window (7, 14, 30 or 60 days, or “keep forever”) with a daily cron purge of expired records
* Staging table records the full attachment post row, postmeta and file manifest before deletion — database records can be restored within the configured window
* Per-attachment exclusions list to permanently keep specific IDs off the orphan list
* For images: deletes the original file, all WordPress sub-size variants, the “scaled” full-size variant and matching .webp siblings; for other media types, removes the single attached file
* Pre-deletion re-verification blocks the action if an attachment has become referenced since the last scan
* Live progress bar during scans, batched in 50-attachment chunks to avoid timeouts on large libraries
* Defaults to images-only on upgrade from v1.10.0 — broader media types are opt-in via settings checkboxes

WooCommerce Optimisations
* Dedicated tab that only activates when WooCommerce is installed
* Cart fragments control — disable the admin-ajax request that fires on every page load site-wide or only on non-shop pages
* Expanded conditional asset loading for WooCommerce scripts, styles, block assets, selectWoo and blockUI
* Disable the zxcvbn password strength meter on the frontend
* Disable marketplace suggestions and WooCommerce dashboard widgets
* Prevent heavy wc-admin React bundles from loading on non-WooCommerce admin pages
* Configurable Action Scheduler retention period to stop actionscheduler_actions ballooning on busy stores
* One-click cleanup for expired WooCommerce sessions and product/order/expired transients
* Full backward compatibility with the previous WooCommerce script and style toggles

Multisite Network Support
* Network-wide activation and deactivation
* Network default settings managed from the Network Admin
* Push settings to all sites (or selected sites) in one click
* Import settings from any existing site as network defaults
* Per-site override control — super admins can lock or unlock site-level customisation
* Automatic setup for newly-created sites using network defaults

External services

This plugin can connect to the third-party services listed below. Each is optional and is only contacted when you enable the relevant feature; with these features off, the plugin makes no external requests.

Google Fonts (Self-host Google Fonts feature)

When you enable “Self-host Google Fonts” and download a font from the Fonts tab, your server contacts the Google Fonts API at fonts.googleapis.com to retrieve the font’s stylesheet, and Google’s font CDN at fonts.gstatic.com to download the font files. The files are then stored on your own server and served locally, so your visitors’ browsers do not contact Google. The request is made by your server only at the moment you trigger a download in the admin area. It sends the requested font family name(s) and the information present in any standard HTTP request (such as your server’s IP address and user agent); no website-visitor data is sent.

This service is provided by Google. Google Terms of Service: https://policies.google.com/terms — Google Privacy Policy: https://policies.google.com/privacy — Google Fonts privacy details: https://developers.google.com/fonts/faq/privacy

YouTube (Video facade feature)

When the video facade is enabled and a page contains an embedded YouTube video, the plugin shows a lightweight placeholder instead of the full embed. To display a preview image, the visitor’s browser loads the video’s thumbnail from YouTube’s image server at i.ytimg.com. The full YouTube player, and any YouTube cookies, are loaded only if the visitor clicks to play. The thumbnail request is made by the visitor’s browser and includes the visitor’s IP address and the YouTube video ID.

This service is provided by Google/YouTube. YouTube Terms of Service: https://www.youtube.com/t/terms — Google Privacy Policy: https://policies.google.com/privacy

Vimeo (Video facade feature)

When the video facade is enabled and a page contains an embedded Vimeo video, the plugin shows a lightweight placeholder instead of the full embed. To display a preview image, the visitor’s browser requests the video’s public metadata from Vimeo’s API at vimeo.com/api/v2/video/{id}.json, which returns the thumbnail URL. The full Vimeo player is loaded only if the visitor clicks to play. The request is made by the visitor’s browser and includes the visitor’s IP address and the Vimeo video ID.

This service is provided by Vimeo. Vimeo Terms of Service: https://vimeo.com/terms — Vimeo Privacy Policy: https://vimeo.com/privacy