F12 Profiler
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. Features Analysis & Diagnostics Server analysis (PHP, MySQL, OPcache, web server, SSL, HTTP/2, compression) Automatic site crawler with load time measurement (desktop & mobile) Asset analysis (CSS, JS, images) with optimization potential OPcache status & configuration recommendations PHP profiler (runtime, queries, hooks, plugin ranking, culprit analysis) Plugin impact analysis (assets, hooks, queries per plugin) PageSpeed Insights integration (Lighthouse Scores + Core Web Vitals + CrUX) Performance score with 6 weighted categories (A-F grades, trend delta) Recommendation engine with automatic optimization suggestions Optimization Tools Lazy Loading (images and iframes) Font Display Optimization (font-display: swap/optional/fallback/block) Script Defer Manager (automatic defer for scripts with exclusion list) Auto Image Dimensions (prevents Layout Shifts / CLS) HTML Minification (whitespace, comments, empty attributes) CSS/JS Minification (file-based cache) WordPress Bloat Removal (emojis, embeds, Dashicons, jQuery Migrate, XML-RPC, Heartbeat, and more) Browser Cache (.htaccess-based) DNS Prefetch & Preconnect (domain detection from asset scan) Database Analysis (8 categories with detail view) Autoload Manager (granular wp_options management) Background Asset Scanner with conflict detection File-based Page Cache with TTL and URL exclusion (Pro) CSS/JS Asset Manager – disable, defer, async per page or globally (Pro) Conditional Loading – shortcode, block, regex, archive, login status, post type, plugin (Pro) Smart auto-suggestions with source-based plugin detection after full scan (Pro) Asset Preload Manager – Link headers for critical assets (Pro) Critical CSS Generator & Applier – above-the-fold CSS per template (Pro) Unused CSS Removal – per page template, safelist, regex safelist (Pro) WebP Image Conversion with batch queue and backup (Pro) LQIP Image Placeholders – 20px blur-up previews with IntersectionObserver (Pro) Preload Key Requests – LCP images, fonts, critical resources (Pro) Script Delay – delays third-party JS until first user interaction (Pro) Local Google Fonts – GDPR-compliant WOFF2 self-hosting (Pro) YouTube/Vimeo Facade – thumbnail + play button instead of iframe (Pro) Database Cleanup – one-click per category or bulk action (Pro) Redis Object Cache Management – drop-in installation/removal (Pro) Scheduled Crawls & Cleanups via WP-Cron (Pro) Performance Budgets with email/webhook notifications (Pro) Settings Import/Export as JSON (Pro) One-Click Optimizer – automated optimization with backup & restore (Pro) License Management with activation/deactivation (Pro) User Interface Modern iOS-style design system React 18 + TypeScript SPA 30+ pages/tools with dedicated configuration Context-sensitive info sections on all pages Pro features visible with lock icon and upgrade prompt Get F12 Profiler Pro System Requirements WordPress 6.0 or higher PHP 8.0 or higher MySQL 5.7 / MariaDB 10.3 or higher
Super Page Cache – Cloudflare Cache, Page Speed & Core Web Vitals
Super Page Cache is a powerful full page cache plugin for WordPress that caches static files (CSS, JS, images) and HTML webpages at both server disk-level and the global Cloudflare CDN. Get enterprise-level performance with zero configuration required. Super Page Cache improves site speed by enabling server-side caching, cache preloading, local Google Fonts, and removing unused CSS and JavaScript, boosting Core Web Vitals and load times. Works right out of the box with or without Cloudflare. Powerful disk caching saves files locally on your server. To use Cloudflare CDN, just enter your API Key or Token. The intuitive dashboard includes detailed settings and built-in documentation, though most users won’t need to change the defaults. ⚡ Quick Links Documentation → Complete setup and configuration guide Support Forum → Community help and expert support YouTube Videos → Step-by-step visual guides for every feature Go Pro → Advanced features and priority support 🚀 How Does The Plugin Work? Disk Caching (Works Without Cloudflare): Server-level caching saves HTML pages and static files directly to your server, loading pages instantly without any CDN. Cloudflare CDN (Optional): Connect your Cloudflare account to leverage 200+ edge locations using modern Cache Rules. Works with FREE Cloudflare Plan – no paid account required. Achieve higher Pingdom and GTmetrix scores with edge delivery. Supports Free, Pro, and Enterprise Cloudflare plans with auto-purging, cron jobs, and integrated metrics. 🔥 Core Features (Free Version) 🚀 Complete Caching Solution Super Page Cache combines full page caching, disk caching, and browser caching, with lazy loading for images, videos, and iframes. Disk Caching: Lightning-fast server caching with Cloudflare fallback CDN Integration: Optional Cloudflare CDN with 200+ edge locations Cache Controls: Exclude cookies, query params, URIs, AMP, feeds, REST API Cache Lifespan: Custom expiration or never-expire settings Header Management: Preserve critical response headers Cache Buster: Logged-in users never see cached content Performance Metrics: Track cache effectiveness ⚡ Performance Optimization Speed optimization tools remove unused CSS, remove unused JS, and handle Google Fonts optimization by serving local Google Fonts. Google Fonts: Combine and serve locally for better Web Vitals Lazy Loading: Images, videos, iframes, background images Lazy Load Exclusions: By keywords, URL patterns, or CSS classes Assets Manager: Enable/disable CSS/JS per page Browser Caching: Auto-configure .htaccess rules These performance features cover CSS, caching, lazy loading, and browser caching to keep every page fast. 🛠️ Advanced Cache Management Auto-Purging: Clear cache on content updates including related pages Granular Purge: HTML only or entire cache with assets Preloader: From sitemaps, menus, or recent posts (manual/CRON) Background Processing: Uses Action Scheduler Queue-Based Purging: Prevent server overload Backend Bypass: Prevent admin dashboard caching Per-Page Control: Exclude via editor metabox Toolbar Purging: Instant purge from WP toolbar 🔧 Developer & Power User Features Redesigned Dashboard: Intuitive navigation with grouped settings Built-in Documentation: Tips within the dashboard Cache Backends: advanced-cache.php or cURL-based Defer JS Filter: spc_defer_script to exclude scripts Role Permissions: Control who can purge cache Cloudflare API: All plans via API Key or Token Export/Import: Settings as JSON Preserve on Deactivation: Retain settings for staging 🗄️ Database Optimization Database Cleanup: Remove revisions, auto-drafts, trash, spam, transients Scheduled Maintenance: Daily, weekly, or monthly Table Optimization: SQL OPTIMIZE TABLE for defragmentation Selective Cleanup: Choose which data types to clean One-click database optimization helps clean database clutter and improve performance. 🌐 Universal Compatibility Premium Hosts: Kinsta, WP Engine, SpinupWP, and more eCommerce: WooCommerce, Easy Digital Downloads Server Caches: Varnish, OPcache auto-purge Prefetch: Internal links via Instant.page 💎 Super Page Cache PRO with Advanced Performance Features Ignore Marketing Parameters: Better cache hit rate (UTM, affiliate, tracking codes) Defer JavaScript: Eliminate render-blocking JS. Learn more Delay JavaScript: Load JS on interaction only. Learn more Advanced Lazy Loading: Viewport detection, above-the-fold optimization Advanced Exclusions: Exclude specific JS/pages from caching Priority Support: Faster email response times Upgrade to Pro 🎯 Usage Note Disable page caching in other plugins (WP Rocket, LiteSpeed Cache, W3 Total Cache). Safe to use alongside Optimole, Autoptimize, Perfmatters, ShortPixel for asset optimization. ⭐ What Users Say ★★★★★ “Response times dropped from 400ms+ to below 200ms. Almost the same as my static S3 site—using the free version!” – @jurijs0 ★★★★★ “A game-changer for our website’s performance! Noticeable improvement in loading times, boosted engagement and SEO.” – @brandnexusstudios Leave a review | Follow us on Twitter | YouTube Super Page Cache is backed by Themeisle, powering 1M+ WordPress sites with 450+ five-star Trustpilot ratings.
