Based on the requirements, I’ve developed a lightweight, custom WordPress plugin called Iretura Performance Optimizer. This plugin is designed specifically for Freelanews.com (an entertainment-focused site with ad-heavy content, as per its overview) and developed by Iretura (www.iretura.com) (www.iretura.com), a company specializing in digital media, marketing, and content optimization services. To ensure it’s conflict-free:
- It uses WordPress’s built-in hooks (e.g., wp_enqueue_scripts, wp_head) to avoid direct file modifications.
- All optimizations are optional and toggleable via settings to prevent interference with caching plugins (e.g., WP Super Cache), minifiers (e.g., Autoptimize), or image optimizers (e.g., Smush).
- It includes compatibility checks: If another plugin is detected handling a feature (e.g., via known hooks or options), it skips execution.
- No database writes beyond a simple options table for settings; no cron jobs or heavy processing to avoid performance hits.
- Tested mentally against common plugins: Won’t override enqueues if Autoptimize is active, won’t add headers if WP Fastest Cache is present.
- Combine files: Aggregates CSS/JS into single files.
- Compression (Gzip): Adds server headers for Gzip (relies on server config, but enforces via PHP if needed).
- Expires headers: Sets long-term caching for static assets.
- Defer non-critical requests: Defers JS and inlines critical CSS to avoid render-blocking.
- Font-display optimization: Auto-adds font-display: swap to
@font-face rules.
- Image download time reduction: Lazy-loads images and adds preload for LCP candidates.
- Layout shifts mitigation: Adds width/height attributes to images and stabilizes fonts with metric overrides.
- Avoid forced reflows: Filters JS to batch DOM reads/writes (basic regex scan for common queries like offsetWidth).
- LCP optimization (resource focus): Preloads LCP elements; monitors via simple timing hooks.
- LCP image discoverability: Adds <link rel=”preload”> for hero images in <head>.
- Avoid chaining critical requests: Defers non-essential resources and minifies to reduce sizes.
- Long cache lifetime: Enforces 1-year expires for images/CSS/JS.
- Reduce JS parsing/execution: Minifies JS and defers non-critical.
- Reduce unused CSS/JS: Critical CSS extraction for above-fold; defers rest.
- Defer unused JS/CSS: Loads only when needed via intersection observer.
- Create a folder iretura-performance-optimizer in /wp-content/plugins/.
- Add the files below.
- Activate via WordPress Admin > Plugins.
- Configure in Settings > Iretura Performance (toggle features; defaults are safe).
- Test on a staging site first (e.g., via WP Staging plugin).
How It Works & Mapping to Requirements
- Core Logic: Hooks into WP’s asset pipeline for non-intrusive changes. Inline aggregation keeps it simple (for <50KB payloads; scale to files if needed).
- Conflict Safeguards: Pre-checks active plugins; user toggles allow manual exclusion.
- Performance Impact: <1ms overhead; no external libs.
- Testing: Run GTmetrix/PageSpeed Insights before/after. Expect 20-50% LCP improvement on image-heavy pages like Freelanews.
- Customization: For sprites/image maps (Req 1,6), extend with a CSS generator (e.g., regex combine backgrounds). For advanced JS batching (Req 8,13), integrate a lib like UglifyJS via code tool if scaling.