project requirement Technical Specifications: 1. General Information Project: Optimizing the performance of the WordPress website Objectives: Reducing website response time Speeding up image loading Improving performance and user experience 2. Task 1: Configuring WordPress caching 2.1. Goal Implement multi-level caching to reduce server response time and speed up page loading. 2.2. Caching requirements 2.2.1. Page caching Install and configure a caching plugin (WP Rocket, W3 Total Cache, or similar) Configure caching for static HTML pages Set cache lifetime: 4 hours for the home page, 8 hours for internal pages Implement automatic cache clearing when content is updated 2.2.2. Object Caching Configure object caching via Redis or Memcached Install and configure the appropriate plugin (Redis Object Cache, etc.) Configure database query caching Set TTL for objects: 2.2.3. Browser caching Configure Cache-Control headers for static resources: CSS/JS files Images Fonts Implement static file versioning for cache invalidation 2.2.4. Minification and concatenation Enable minification of HTML, CSS, and JavaScript Configure concatenation of CSS and JS files Implement deferred loading of JavaScript (defer/async) 2.3. Server integration Configure Nginx/Apache to support caching Implement gzip compression for text resources Configure ETag headers 2.4. Acceptance criteria Server response time (TTFB) less than 200 ms Google PageSpeed Insights performance score of at least 90/100 Cache is cleared correctly when content is updated Caching works for authorized users (with exceptions) 3. Task 2: Implement image loading in CDN 3.1. Goal Integrate CDN for hosting and delivering images, reducing the load on the main server and speeding up the loading of media files. 3.2. Requirements for CDN integration 3.2.1. Selecting and configuring a CDN provider Select a CDN provider (Cloudflare, BunnyCDN, CloudFront, or similar) Configure the CDN zone for the website domain Configure an SSL certificate for the CDN 3.2.2. Integration with WordPress Install and configure a plugin for working with CDN (WP Offload Media, CDN Enabler, or similar) Configure automatic uploading of new images to CDN Implement synchronization of existing media files Ensure support for the WebP format (with fallback) 3.2.3. Image optimization Configure automatic image optimization upon upload: Lossless compression Resize to a maximum width of 1920px Automatic preview generation Implement lazy loading for images Configure adaptive images for different devices 3.2.4. Content delivery configuration Configure image caching policy in CDN: TTL for images: 1 month Cache-Control headers HTTP/2 support Implement hotlinking protection Configure watermarking if necessary 3.3. Migration of existing images Create a script to migrate existing media files to CDN Ensure redirection of old URLs to CDN addresses Preserve the structure of the WordPress media library 3.4. Acceptance criteria All new images are automatically uploaded to CDN Existing images are transferred to CDN Image URLs in content are replaced with CDN addresses Image loading speed is improved by 50% HTTPS is supported for all resources 4. Technical requirements 4.1. Compatibility WordPress version 5.8+ PHP 7.4+ Multisite support Compatibility with existing plugins and themes 4.2. Security Image privacy preservation Protection against direct access to originals Secure data transfer to CDN 4.3. Monitoring and analytics Integration with Google Analytics Performance monitoring configuration Caching and CDN error logging 5. Implementation stages Stage 1: Preparation Analysis of the current configuration Website backup Selection and configuration of tools Stage 2: Caching configuration Installation and configuration of caching plugins Configuring server caching Testing cache performance Stage 3: CDN integration Configuring a CDN account Integration with WordPress Migrating existing images Stage 4: Testing and optimization Performance testing Configuring additional optimizations Documenting changes 6. Documentation Upon completion of the work, the following must be provided: Technical documentation on settings Instructions for the site administrator Recommendations for further support