內容簡介
WP Optimizer 是一款免費的模組化 WordPress 快取與性能優化外掛，旨在提升 WordPress 的速度、輕量化及易於診斷。透過多種功能，幫助改善頁面速度及核心網頁指標，讓網站表現更佳。
【主要功能】
• 頁面快取：將完整的 HTML 回應儲存於磁碟
• 瀏覽器快取：設定 CSS、JavaScript 等靜態資源的快取策略
• GZIP & Brotli 壓縮：減少傳輸頁面大小
• HTML、CSS & JavaScript 縮小：縮小頁面輸出及本地資源
• 延遲加載：延遲加載圖片及 iframe
• WebP 轉換：將支援的圖片直接轉換為 WebP
外掛標籤
開發者團隊
② 後台搜尋「WP Optimizer – PageSpeed, Cache, Minify & Core Web Vitals」→ 直接安裝（推薦）
原文外掛簡介
WP Optimizer is a free, modular WordPress cache and performance optimization plugin built to make WordPress faster, lighter and easier to diagnose.
Improve page speed and Core Web Vitals with page caching, HTML/CSS/JavaScript minification, browser caching, GZIP/Brotli compression, lazy loading, LCP optimization, local image compression, WebP conversion, database cleanup and performance monitoring — from one dashboard.
Unlike optimization tools that depend on a mandatory external service, WP Optimizer’s core optimization features run on your own server. No subscription or premium upgrade is required to unlock the performance modules listed below.
Already using another cache or optimization plugin? WP Optimizer is modular: enable only the tools you need and leave overlapping modules disabled.
Optimize WordPress Performance
WP Optimizer combines the most common WordPress performance optimizations in one plugin:
Page Cache – Store complete HTML responses on disk and serve eligible cached pages before WordPress loads.
Browser Cache – Configure caching policies for CSS, JavaScript, images, fonts and other static resources.
GZIP & Brotli Compression – Generate supported server rules to reduce transferred page size.
HTML, CSS & JavaScript Minification – Minify page output and local assets, with optional CSS and JavaScript combination.
Lazy Loading – Lazy load images and iframes and prevent unnecessary video preloading.
LCP Optimization – Preload a detected Largest Contentful Paint image with high fetch priority.
Font Optimization – Apply font-display: swap and optionally defer font stylesheets.
Navigation Prefetching – Prefetch eligible same-origin links when visitors show navigation intent.
Local Image Optimization – Compress images and generated thumbnails using Imagick or GD.
WebP Conversion – Convert supported images to WebP directly on your server.
Automatic Media Optimization – Process new uploads and larger media-library jobs in background batches.
Database Optimization – Clean revisions, transients, orphaned metadata, spam and other unnecessary database data.
Object Cache – Optional Redis or Memcached integration when the required service and PHP extension are available.
WP_Query & Database Query Cache – Cache selected expensive WordPress and database query results.
WP Optimizer can be used as a complete WordPress performance toolkit or alongside an existing setup when overlapping optimization layers are disabled.
Measure Before and After – Don’t Guess
Optimization is more useful when you can verify what actually changed.
Page Test compares a baseline request with WP Optimizer bypassed against your current warmed configuration.
It reports metrics including:
Response time
Time to First Byte (TTFB)
Peak memory usage
Response size
Slow database queries
Repeated queries
Expensive WordPress hooks and callbacks
This makes it easier to determine whether a configuration is actually improving your site instead of enabling performance options blindly.
Find Slow Plugins and Database Queries
The built-in Performance Monitor helps identify where WordPress is spending time and resources.
It can profile:
Plugin load time
Theme load time
WordPress core load time
SQL execution time
Query count
Memory usage
Slow database queries
Cache hits and misses
Slow requests
Callback execution time
Use configurable sampling and slow-request thresholds to investigate performance problems without permanently profiling every request.
If your WordPress site has a high TTFB or slow backend, Performance Monitor can help identify whether the bottleneck comes from a plugin, theme, database query or WordPress itself.
Page Cache
WP Optimizer includes a configurable static page cache for WordPress.
Eligible rendered HTML pages can be stored on disk and served using server-specific rules before a normal WordPress request needs to finish loading.
Cache controls include:
Cache lifetime rules
URL inclusion and exclusion rules
Query-string handling
User scope
Status-code rules
Cookie exclusions
User-agent exclusions
Automatic cache invalidation
Content-aware purging
Cache hit and miss statistics
Disk usage statistics
When WordPress content changes, affected cache entries can be invalidated automatically.
WooCommerce-sensitive pages and sessions are automatically excluded where required.
Object, WP_Query and Database Caching
WP Optimizer provides multiple optional caching layers.
Object Cache
Install a WordPress object-cache.php drop-in and use Redis or Memcached when a compatible PHP extension and service are available.
WP_Query Cache
Cache selected WordPress query results with configurable lifetimes and invalidation behavior.
Database Query Cache
Cache eligible database responses and invalidate related entries when WordPress content changes.
Each cache layer can be configured independently.
Redis or Memcached is not required to use WP Optimizer’s page cache, browser cache, minification, compression, image optimization or database tools.
HTML, CSS and JavaScript Optimization
WP Optimizer can optimize:
Rendered HTML
Inline CSS
Inline JavaScript
Local CSS files
Local JavaScript files
Generated optimized assets are cached on disk.
Already-minified resources are skipped when possible, relative CSS paths are preserved, and compatibility safeguards prevent known page-builder editing and preview requests from being transformed.
CSS and JavaScript combination is optional.
For best compatibility, enable HTML, CSS and JavaScript optimization separately and test the site after each change.
Image Optimization and WebP
Optimize WordPress images locally without requiring an external image optimization service.
WP Optimizer can:
Compress Media Library images
Compress generated WordPress thumbnails
Convert supported images to WebP
Resize oversized images
Preserve EXIF metadata when requested
Optimize new uploads automatically
Process larger libraries in background batches
Add missing image width and height attributes when metadata is available
Lazy load images
Identify potentially unused media files
Image processing uses Imagick or GD on your own server.
Core Web Vitals Optimization
WP Optimizer includes multiple optimizations that can improve the technical factors behind Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS) and Interaction to Next Paint (INP).
These include:
Page caching
Browser caching
GZIP/Brotli compression
HTML/CSS/JavaScript minification
Image compression
WebP conversion
Image and iframe lazy loading
Missing image dimension fixes
LCP image preloading
Font display optimization
Font stylesheet optimization
Navigation prefetching
Reduced unnecessary WordPress output
Actual Core Web Vitals and PageSpeed results depend on your theme, plugins, hosting, content, third-party scripts and configuration.
WP Optimizer does not promise a specific PageSpeed score. Use Page Test, Performance Monitor and external testing tools to verify the result on your own site.
Database Cleanup and Autoload Health
A slow WordPress database can increase backend and frontend response times.
WP Optimizer includes tools to inspect and maintain your WordPress database.
Clean or manage:
Post revisions
Auto drafts
Trashed posts
Spam comments
Transients
Orphaned metadata
Database tables
Large wp_options entries
Autoloaded options
The database module can also:
Optimize selected tables
Create SQL backups
Restore SQL backups
Inspect option size
Inspect autoload status
Disable autoload for selected options
Delete selected options
Create a database backup before changing or deleting data you are not familiar with.
Media Cleaner
The Media Cleaner can scan the WordPress Media Library or a selected uploads directory for files that do not appear to be referenced by WordPress content.
Detected files can be:
Reviewed
Ignored
Deleted
Always review detected files before deleting them. Themes, plugins and custom code can reference media in ways that WordPress cannot automatically discover.
WooCommerce Compatibility
WP Optimizer includes automatic safeguards for WooCommerce.
Sensitive WooCommerce requests such as:
Cart
Checkout
My Account
WooCommerce sessions
Cart actions
Relevant API requests
are automatically excluded from incompatible caching and runtime HTML optimization.
Content changes can automatically invalidate affected cache entries.
Page Builder Compatibility
WP Optimizer detects editing and preview requests from supported page builders, including:
Elementor
Beaver Builder
Divi
Gutenberg
Bricks
Oxygen
Breakdance
Editing and preview requests bypass incompatible caching and output transformations, while sensitive generated builder assets and markup are protected from minification where required.
Apache, Nginx, LiteSpeed and OpenLiteSpeed
WP Optimizer detects and supports multiple common WordPress server environments.
Apache and LiteSpeed Enterprise
Managed server rules can be written to the local .htaccess file.
Nginx
WP Optimizer generates an Nginx configuration file. The generated configuration must be included in the website server block and Nginx must then be reloaded.
OpenLiteSpeed
WP Optimizer can generate compatible rewrite rules for direct cache delivery, redirects and rewrite-based security controls.
Enable Auto Load from .htaccess for the appropriate virtual host.
Compression, response headers, MIME types and other non-rewrite server settings should be configured through OpenLiteSpeed WebAdmin where required.
Cloudflare Integration
WP Optimizer can optionally integrate with Cloudflare using a configured API token and Zone ID.
The integration can:
Test Cloudflare credentials
Purge cached content by host
Purge cache tags
Purge the complete zone cache
Automatically purge the configured Cloudflare cache when the local WP Optimizer page cache is cleared
Cloudflare is optional and is not required for WP Optimizer’s local optimization features.
Safer Performance Testing and Recovery
Performance settings can interact differently with every combination of theme, plugins, server and hosting configuration.
WP Optimizer therefore includes configuration backup and recovery tools.
Before the main settings are changed, WP Optimizer can create an automatic configuration snapshot.
The latest configuration backups can be reviewed, restored or deleted from the Settings module.
If a fatal error is caused by WP Optimizer or by a WP Optimizer-managed cache drop-in, the recovery system can attempt to:
Restore a previous working configuration
Remove plugin-managed cache drop-ins
Remove generated server rules
Clear generated cache data
Remove minified resources
Remove direct-cache files
Reset scheduled optimization tasks
Reset WP Optimizer to factory settings
Recovery actions do not reset unrelated themes, plugins or server configuration.
More WordPress Maintenance Tools
Performance is the main focus, but WP Optimizer also provides optional maintenance and administration modules.
These include:
Cron & Heartbeat
Inspect WordPress cron events
Create, edit, run or delete cron events
Manage custom schedules
Reduce unnecessary frontend cron checks
Configure the wp-admin Heartbeat interval
Schedule automatic database and media optimization
WordPress Cleanup
Optionally disable unnecessary WordPress output or functionality such as:
Emojis
XML-RPC
Feeds
oEmbed
Selected REST access
Shortlinks
Relational links
WordPress sitemap
jQuery Migrate
Dashicons
Global Styles
Widgets
Comments
Selected Block Editor functionality
Security Hardening
Optional WordPress and server hardening controls include:
Directory listing protection
HTTP TRACE protection
Sensitive configuration-file protection
HSTS
MIME-sniffing protection
Referrer policy
Frame protection
Reduced WordPress/server version disclosure
Basic user-enumeration protection
WordPress file-editor disabling
Activity Log
Record selected:
User actions
Post actions
Term actions
Attachment changes
Option changes
Plugin actions
Optional suspicious-request monitoring can detect patterns commonly associated with XSS, SQL injection, path traversal, command injection and sensitive-file probes.
SMTP & Mail Logging
Configure WordPress SMTP transport and optionally record outgoing email for troubleshooting.
WordPress Update Controls
Control WordPress core and plugin update checks, automatic updates, update notices and related notification emails.
System Information
Inspect WordPress, PHP, database, web server, filesystem and storage information from one dashboard.
Local-First and Modular
WP Optimizer does not require a mandatory optimization SaaS or subscription for its core features.
Page caching, minification, image optimization, WebP conversion, database optimization, diagnostics and performance monitoring can run on your own WordPress server.
Optional integrations such as Cloudflare only communicate with external services when you configure and use those integrations.
Optional error-reporting or telemetry functionality can be controlled separately.
Most importantly, you do not have to enable everything.
If you already have a preferred cache plugin, CDN or another optimization tool, disable overlapping WP Optimizer modules and use only the features that complement your existing stack.
Do not let two plugins manage the same optimization layer at the same time, especially:
Page cache
Object cache
Database/query cache
HTML/CSS/JavaScript minification
Asset combination
Generated server rules
Recommended Setup
For an existing or production WordPress site:
Open WP Optimizer → WP Info and review your server environment.
Create a database backup.
Start with browser caching and supported compression.
Configure image optimization and WebP.
Enable the WP Optimizer schedule if you want automatic image or database maintenance.
Enable page cache.
Clear the cache and test important pages.
Enable HTML minification and test again.
Enable CSS optimization and test again.
Enable JavaScript optimization and test again.
Test forms, search, login, WooCommerce cart/account/checkout and other dynamic pages.
Run Page Test to compare the result.
Use Performance Monitor if you still have slow requests, plugins or database queries.
Avoid enabling multiple aggressive optimization options simultaneously on an existing production site.
Free Performance Features – No Premium-Locked Modules
WP Optimizer is free and the performance modules described on this page are not locked behind a premium upgrade.
That includes:
Static page cache
Browser caching
GZIP/Brotli configuration
HTML/CSS/JavaScript minification
Lazy loading
LCP optimization
Font optimization
Local image compression
WebP conversion
WP_Query cache
Database query cache
Redis/Memcached object-cache integration
Database cleanup
Autoload analysis
Cron management
Page Test
Performance Monitor
Cloudflare cache purging
Configuration backups and recovery
Use one plugin as a complete optimization toolkit, or enable only the individual modules your site needs.
