Oxford Metadata Ltd

Menu Optimizer is a powerful performance optimization plugin that generates static HTML files for your WordPress menus, dramatically reducing server load and improving page load times.
Real-World Success: This optimization technique helped achieve the first WooCommerce store with a perfect 100/100 mobile score on Google PageSpeed Insights. <a href="https://wp-rocket.me/blog/100-mobile-score-woocommerce/" rel="nofollow ugc">Read the WP Rocket case study</a>
Why Menu Caching Matters
Menu generation requires significant compute time on WordPress and WooCommerce sites. Every page load requires WordPress to: 
* Query the database for menu items 
* Process menu hierarchy 
* Apply filters and hooks 
* Render HTML output
Menu Optimizer eliminates this overhead by pre-generating menu HTML files that are served instantly.
The DOM Size Problem
Google Lighthouse triggers warnings when a page exceeds 1,500 DOM nodes (HTML elements). For e-commerce sites with extensive product categories:
<ul>
<li>A mega menu with 200-300 categories can generate 3,000-5,000+ DOM elements</li>
<li>Each nested menu item multiplies the element count</li>
<li>This exceeds Google’s limits and hurts Core Web Vitals scores</li>
</ul>
Menu Optimizer’s lazy loading keeps your initial DOM size under 1,500 nodes by loading only top-level items (typically 50-100 elements). Submenus load on-demand, maintaining excellent performance.
Key Features
<ul>
<li>Performance Boost – Reduces menu rendering time with static file caching</li>
<li>Multiple Menu Support – Cache and display multiple menus independently on the same page</li>
<li>Horizontal & Vertical Layouts – Supports both menu orientations for flexible placement</li>
<li>Static File Generation – Pre-generates HTML files for instant delivery</li>
<li>Lazy Loading – Top-level items load instantly; submenus load on first hover</li>
<li>Smart Caching – Uses localStorage for even faster subsequent loads</li>
<li>Max Mega Menu Compatible – Fully supports complex mega menu layouts</li>
<li>Easy Integration – Simple shortcode implementation</li>
<li>Translation Ready – Full i18n support with included POT file</li>
<li>CDN Compatible – Works seamlessly with caching plugins and CDNs</li>
</ul>
Performance Benefits
✓ Keeps DOM size under Google’s 1,500-node limit with lazy loading 
✓ Reduces server CPU usage by offloading menu generation 
✓ Decreases Time To First Byte (TTFB) 
✓ Improves Core Web Vitals scores (LCP, CLS, INP) 
✓ Reduces database queries per page load 
✓ Compatible with WP Rocket, W3 Total Cache, and other caching plugins
Perfect For
<ul>
<li>WooCommerce stores with complex category menus</li>
<li>Sites with large mega menus</li>
<li>High-traffic websites</li>
<li>Sites on shared hosting</li>
<li>Performance-critical applications</li>
<li>Stores aiming for 100/100 PageSpeed scores</li>
</ul>
Proven Results
This menu optimization technique was used in a WooCommerce store that achieved a 100/100 Google PageSpeed mobile score.
Learn more: <a href="https://wp-rocket.me/blog/100-mobile-score-woocommerce/" rel="nofollow ugc">WP Rocket Case Study – 100/100 Mobile Score for WooCommerce</a>
<h3>Credits</h3>
Developed by Oxford Metadata Ltd 
Contact: dimitris.vayenas@oxfordmetadata.co.uk
Special thanks to the WordPress community for their valuable feedback and contributions.
<h3>Support</h3>
For support, please visit the <a href="https://wordpress.org/support/plugin/static-menu-cache" rel="ugc">WordPress.org support forum</a> or contact us at dimitris.vayenas@oxfordmetadata.co.uk.
<h3>Privacy</h3>
This plugin: 
* Does not collect any user data 
* Does not make external API calls 
* Does not use cookies 
* Stores cached menu files locally on your server 
* Uses localStorage only for client-side caching (optional)
<h3>Performance Tips</h3>
<ol>
<li>Combine with a caching plugin – Use WP Rocket or similar for full-page caching</li>
<li>Enable lazy loading – The plugin does this automatically</li>
<li>Use a CDN – Serve static menu files from a CDN for global performance</li>
<li>Regenerate regularly – Update cache whenever you modify your menu structure</li>
<li>Customize CSS via Customizer – Use WordPress’s built-in Customizer for menu styling</li>
</ol>
<h3>Technical Details</h3>
File Structure: 
* Top menu file – Loads instantly with page (minimal HTML) 
* Full menu file – Lazy loads on first interaction (complete with submenus) 
* CSS options – None, Max Mega Menu auto-detect, or custom 
* Storage location – <code>wp-content/uploads/menu-optimizer/</code>
Browser Compatibility: 
* Chrome 90+ 
* Firefox 88+ 
* Safari 14+ 
* Edge 90+
Server Requirements: 
* PHP 7.4 or higher 
* WordPress 5.8 or higher 
* Write permissions to uploads directory

Menu Optimizer

Boost site speed with static menu caching. Lazy-load submenus to keep DOM size under 1,500 nodes for better Core Web Vitals.

Forge12 Interactive GmbH

F12 Profiler analyzes your WordPress site comprehensively and delivers concrete, prioritized recommendations to improve load times. The plugin combines server diagnostics, asset analysis, database optimization, and plugin impact assessment in a modern, clean interface.
<h4>Features</h4>
Analysis & Diagnostics
<ul>
<li>Server analysis (PHP, MySQL, OPcache, web server, SSL, HTTP/2, compression)</li>
<li>Automatic site crawler with load time measurement (desktop & mobile)</li>
<li>Asset analysis (CSS, JS, images) with optimization potential</li>
<li>OPcache status & configuration recommendations</li>
<li>PHP profiler (runtime, queries, hooks, plugin ranking, culprit analysis)</li>
<li>Plugin impact analysis (assets, hooks, queries per plugin)</li>
<li>PageSpeed Insights integration (Lighthouse Scores + Core Web Vitals + CrUX)</li>
<li>Performance score with 6 weighted categories (A-F grades, trend delta)</li>
<li>Recommendation engine with automatic optimization suggestions</li>
</ul>
Optimization Tools
<ul>
<li>Lazy Loading (images and iframes)</li>
<li>Font Display Optimization (font-display: swap/optional/fallback/block)</li>
<li>Script Defer Manager (automatic defer for scripts with exclusion list)</li>
<li>Auto Image Dimensions (prevents Layout Shifts / CLS)</li>
<li>HTML Minification (whitespace, comments, empty attributes)</li>
<li>CSS/JS Minification (file-based cache)</li>
<li>WordPress Bloat Removal (emojis, embeds, Dashicons, jQuery Migrate, XML-RPC, Heartbeat, and more)</li>
<li>Browser Cache (.htaccess-based)</li>
<li>DNS Prefetch & Preconnect (domain detection from asset scan)</li>
<li>Database Analysis (8 categories with detail view)</li>
<li>Autoload Manager (granular wp_options management)</li>
<li>Background Asset Scanner with conflict detection</li>
<li>File-based Page Cache with TTL and URL exclusion (Pro)</li>
<li>CSS/JS Asset Manager – disable, defer, async per page or globally (Pro)</li>
<li>Conditional Loading – shortcode, block, regex, archive, login status, post type, plugin (Pro)</li>
<li>Smart auto-suggestions with source-based plugin detection after full scan (Pro)</li>
<li>Asset Preload Manager – Link headers for critical assets (Pro)</li>
<li>Critical CSS Generator & Applier – above-the-fold CSS per template (Pro)</li>
<li>Unused CSS Removal – per page template, safelist, regex safelist (Pro)</li>
<li>WebP Image Conversion with batch queue and backup (Pro)</li>
<li>LQIP Image Placeholders – 20px blur-up previews with IntersectionObserver (Pro)</li>
<li>Preload Key Requests – LCP images, fonts, critical resources (Pro)</li>
<li>Script Delay – delays third-party JS until first user interaction (Pro)</li>
<li>Local Google Fonts – GDPR-compliant WOFF2 self-hosting (Pro)</li>
<li>YouTube/Vimeo Facade – thumbnail + play button instead of iframe (Pro)</li>
<li>Database Cleanup – one-click per category or bulk action (Pro)</li>
<li>Redis Object Cache Management – drop-in installation/removal (Pro)</li>
<li>Scheduled Crawls & Cleanups via WP-Cron (Pro)</li>
<li>Performance Budgets with email/webhook notifications (Pro)</li>
<li>Settings Import/Export as JSON (Pro)</li>
<li>One-Click Optimizer – automated optimization with backup & restore (Pro)</li>
<li>License Management with activation/deactivation (Pro)</li>
</ul>
User Interface
<ul>
<li>Modern iOS-style design system</li>
<li>React 18 + TypeScript SPA</li>
<li>30+ pages/tools with dedicated configuration</li>
<li>Context-sensitive info sections on all pages</li>
<li>Pro features visible with lock icon and upgrade prompt</li>
</ul>
<a href="https://www.forge12.com/f12-profiler-pro/" rel="nofollow ugc">Get F12 Profiler Pro</a>
<h4>System Requirements</h4>
<ul>
<li>WordPress 6.0 or higher</li>
<li>PHP 8.0 or higher</li>
<li>MySQL 5.7 / MariaDB 10.3 or higher</li>
</ul>

F12 Profiler

Excellent! After P3 doesn’t work with PHP7+ anymore, F12 seems finally the one stepping in to fill that gap.

Update [18-Jun-19]. After some small contributions of mine to the dev efforts, the plugin developer has decided to add me to the team, long after this review was written.

Finally an alternative to P3

Comprehensive WordPress performance analysis with crawling, load time measurement, server diagnostics, and integrated optimization tools. Free.

Menu Optimizer vs F12 Profiler