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XeroWP
BlinkSpeed
BlinkSpeed

BlinkSpeed

5/5 (2 ratings) 10 active installs Updated Apr 22, 2026
cacheoptimizationpagespeedperformanceweb vitals
Download v2.0.0
<p><strong>AI Optimization Dashboard</strong> – Automatically optimize pages using AI-powered performance analysis and track optimization progress for each URL.</p>

<p><strong>AI Optimization Dashboard</strong> – Automatically optimize pages using AI-powered performance analysis and track optimization progress for each URL.</p>

Boost your WordPress site speed with advanced AI optimization techniques. Improve Core Web Vitals, achieve higher scores on Google PageSpeed Insights and GTmetrix, and deliver a faster, smoother browsing experience for your visitors.

Features

  • CSS Optimization – Minification, combination, and critical CSS loading
  • JavaScript Optimization – Minification, combination, and deferred loading
  • HTML Caching – Page-level caching for improved performance
  • Image Optimization – WebP conversion and lazy loading
  • CDN Support – Content Delivery Network integration
  • Lazy Loading – Images, iframes, and videos
  • Asset Preloading – Preload critical assets like images and fonts for faster rendering
  • Admin Bar Integration – Quick cache purge from admin bar
  • Multisite Support – Network-wide and individual site management
  • Web Vitals Monitoring – Core Web Vitals tracking and logging
  • Change Logging – Track all settings changes

Free vs Premium Features

BlinkSpeed offers a powerful free version with essential performance optimizations. A premium license unlocks advanced AI-powered optimization features for the entire website.

Free Version (Included with Plugin)

The following features are available for free and work on all pages:

  • HTML page caching
  • CSS minification
  • JavaScript minification
  • JavaScript lazy loading
  • Image lazy loading
  • Browser caching
  • GZIP compression
  • Cache management tools
  • Multisite compatibility
  • Critical CSS generation (Home Page Only)
  • Advanced image optimization and WebP conversion (Home Page Only)

These optimizations help significantly improve page load speed and overall performance without requiring a license key.

Premium Version (Requires License Key)

The premium version unlocks advanced AI-powered optimization features for all pages:

  • HTML page caching
  • CSS minification
  • JavaScript minification
  • JavaScript lazy loading
  • Image lazy loading
  • Browser caching
  • GZIP compression
  • Cache management tools
  • Multisite compatibility
  • Critical CSS generation (All Pages)
  • Advanced image optimization and WebP conversion (All Pages)

Without a license key, critical CSS and advanced image optimization are available only for the homepage.

Why Premium Features Require a License

Some advanced optimizations rely on BlinkSpeed cloud services to process CSS, images, and performance data. These services require additional server resources, so a license key is required to enable them for the entire website.

You can activate your license key from:

BlinkSpeed General Settings License Key

Requirements

  • WordPress 5.0 or higher
  • PHP 7.4 or higher
  • PHP XML extension
  • PHP GD extension

Plugin Architecture

The plugin follows WordPress coding standards and modular architecture.

Main Files

  • blinkspeed.php – Main plugin file with header and initialization
  • includes/Plugin.php – Main plugin class orchestrating functionality
  • includes/Core.php – Core functionality and settings management
  • includes/Frontend.php – Frontend optimization handling
  • includes/Database.php – Database operations and table management

Admin Structure

  • admin/Admin.php – Main admin class handling menu and settings
  • admin/Admin_Bar.php – Admin bar cache purge functionality
  • admin/admin-page.php – Admin page template

Configuration

General Settings

  • Enable Optimization – Turn on/off optimization features
  • License Key – Enter your BlinkSpeed license key

CSS Optimization

  • CSS Optimization – Enable CSS minification and combination
  • Load Critical CSS – Inline critical CSS for above-the-fold content

JavaScript Optimization

  • JavaScript Optimization – Enable JS minification and combination
  • Load Combined JS – Choose when to load combined JavaScript files

HTML Caching

  • HTML Caching – Enable page-level caching
  • Cache Expiry Time – Set cache expiration time in seconds

Image Optimization

  • Convert JPG to WebP – Automatically convert JPG images to WebP
  • Convert PNG to WebP – Automatically convert PNG images to WebP
  • Lazy Loading – Enable lazy loading for images

Usage

Basic Setup

  1. Activate the plugin.
  2. Go to BlinkSpeed settings.
  3. Configure optimization preferences.
  4. Save settings.

Cache Management

  • Purge cache directly from the WordPress admin bar.
  • CSS/JS cache can be purged globally or per page.
  • HTML cache can be purged globally or per page.
  • Critical CSS cache can be purged per page.

Monitoring

  • View Web Vitals logs for performance insights.
  • Review change logs for settings updates.
  • Monitor cache sizes and performance.

Hooks

Actions

  • blinkspeed_init – Plugin initialization
  • blinkspeed_settings_saved – Settings saved
  • blinkspeed_cache_cleared – Cache cleared

Filters

  • blinkspeed_settings – Modify plugin settings
  • blinkspeed_cache_path – Customize cache paths
  • blinkspeed_exclude_urls – Exclude URLs from optimization

Database Tables

The plugin creates the following tables:

  • wp_blinkspeed_core_web_vitals – Stores Web Vitals performance data
  • wp_blinkspeed_change_logs – Stores settings change logs
  • wp_blinkspeed_site_urls – Stores site URL management data

Cache Structure

wp-content/cache/
├── critical-css/
└── bs-cache/

Performance Impact

  • CSS/JS Optimization – Reduces file sizes by 20-40%
  • HTML Caching – Improves page load times by 50-80%
  • Image Optimization – Reduces image sizes by 25-50%
  • Lazy Loading – Improves initial page load performance

Common Issues

  1. Permission errors – Ensure cache directory permissions are correct.
  2. Cache not working – Verify optimization settings are enabled.
  3. Images not converting – Confirm the GD extension is installed.
  4. Admin bar missing – Check user capability settings.

Security

  • Input sanitization for all settings
  • Nonce verification for forms
  • Capability checks for admin actions
  • Secure file operations

Multisite Support

  • Network-wide settings management
  • Individual site overrides
  • Centralized cache control
  • Site-specific optimization rules

External Services

This plugin connects to the BlinkSpeed API service:

https://rest.blinkspeed.ai

These services provide CSS optimization, image optimization, and license verification.

Data Sent

  • CSS file URLs and content for optimization
  • Image URLs for WebP conversion
  • License key for verification

Service Information

Service Provider: https://blinkspeed.ai
Support Policy: https://blinkspeed.ai/support-policy/
Terms of Service: https://blinkspeed.ai/term-of-service/

All communication happens over secure HTTPS connections.

Minified Assets

Some JavaScript files are distributed in minified form for performance.

Third-party libraries:

  • assets/js/web-vitals.iife.js – https://github.com/GoogleChrome/web-vitals
  • assets/js/diff.min.js – https://github.com/kpdecker/jsdiff

Plugin-specific scripts:

  • assets/js/img-lazyload.js – https://blinkspeed.ai/resources/js/img-lazyload.js
  • assets/js/script-load.min.js – https://blinkspeed.ai/resources/js/script-load.js