webwonderland

Web Wonderland SEO Image Optimiser helps you improve image performance and accessibility without breaking your theme.
The plugin can:
<ul>
<li>Convert images to modern formats (WebP/AVIF)</li>
<li>Serve WebP automatically on the front-end</li>
<li>Generate <code><picture></code> markup for improved Core Web Vitals</li>
<li>(Optional) Generate AI-based captions, alt text and titles in the same language as the WordPress site language</li>
<li>Integrate with Gutenberg, classic themes, Elementor, WPBakery, etc.</li>
<li>Use server-level rewriting or markup-based delivery modes</li>
<li>Restore original images at any time</li>
</ul>
This is a third-party plugin developed by Web Wonderland. 
It is not affiliated with or endorsed by WordPress, Elementor or WPBakery.
<h3>Local vs Cloud processing</h3>
The optimiser can work in two ways:
Local processing (always available) 
Runs entirely on your own server.
<ul>
<li>Unlimited WebP and AVIF generation (subject to your servers capabilities)</li>
<li>No monthly conversion caps</li>
<li>No api key required</li>
<li>Uses your own CPU and disk I/O</li>
</ul>
Cloud/API processing (api key required) 
Offloads heavy image work to the Web Wonderland Image API.
<ul>
<li>Uses a remote worker to generate WebP/AVIF for originals and all sizes</li>
<li>Reduces CPU load on your hosting, useful for busy or shared servers</li>
<li>Quotas and limits depend on your Lite, Pro or Unlimited plan</li>
<li>Works alongside local mode you can always fall back to local processing</li>
</ul>
You can choose your preferred processing mode in SEO Image Optimiser – Settings.
<h3>Free (Lite API Key)</h3>
The Lite API Key requires no card, only an email to issue an API key.
Included in the Lite API Key plan:
<ul>
<li>Unlimited local image conversions (WebP/AVIF) on your own server</li>
<li>Up to 50 cloud/API image conversions per month (WebP + AVIF) via the Web Wonderland Image API</li>
<li>Front-end WebP & AVIF delivery if available</li>
<li>Up to 30 AI alt tag & title generations per month</li>
<li>Automatic backups of originals with one-click restore</li>
<li>Works on one WordPress site</li>
</ul>
Your previously converted images remain on your server regardless of the API Key status. 
If your monthly cloud API quota is reached, the plugin can still optimise images locally.
<h3>Pro API Key</h3>
For busy sites and image-heavy blogs.
Includes everything in Lite plus:
<ul>
<li>Unlimited local image conversions (WebP/AVIF)</li>
<li>Effectively unlimited cloud/API image conversions for most sites 
(high cap WebP & AVIF generation via the Web Wonderland Image API)</li>
<li>Up to 3,000 AI alt tag & title generations per month</li>
<li>Background processing & bulk optimisation</li>
<li>Can be used on up to 5 WordPress sites</li>
</ul>
<h3>Unlimited API Key</h3>
For agencies or users managing many sites.
Includes everything in Pro plus:
<ul>
<li>Unlimited sites</li>
<li>Unlimited local image conversions (WebP/AVIF)</li>
<li>Unlimited cloud/API image conversions (WebP & AVIF for every image)</li>
<li>Up to 10,000 AI alt tag & title generations per month</li>
<li>Background processing & bulk optimisation</li>
</ul>
<h3>AI & Privacy</h3>
AI captioning is optional. If enabled, SmartAlt uses external services as documented in the External services section below. The plugin does not send personal data about site visitors.
<h3>External services</h3>
This plugin can connect to external services operated by Web Wonderland to provide optional “cloud” features (remote image optimisation and AI-powered SmartAlt captions). Local-only optimisation features continue to work without any external service.
When any cloud feature is enabled/used, the plugin sends requests from your WordPress server (admin-side actions) to the endpoints below. The plugin does not send personal data about site visitors.
<h4>1) Web Wonderland Image Optimisation API (Remote conversions)</h4>
Service: Web Wonderland Image Optimisation API 
Domain: imageapi.webwonderland.co.uk 
Used for: Cloud/remote image conversions (WebP/AVIF generation) and job completion signalling.
Endpoints used: 
– https://imageapi.webwonderland.co.uk/v1/jobs (create remote jobs) 
– https://imageapi.webwonderland.co.uk/v1/jobs/{job_id}/complete (mark job completed)
Data sent: 
– API key (sent as a request header) 
– attachment ID and public image URL (or secure URL) for the image being processed 
– derived image sizes and output settings (format, quality, width/height) 
– plugin version and basic site identifier (e.g. domain) where needed for returning results
When sent: 
– Only when you enable Cloud/API processing and run optimisation from the plugin dashboard / bulk optimiser. 
– The “/complete” request is sent after the plugin has successfully downloaded and stored the processed files.
Terms: https://www.webwonderland.co.uk/wwsio-terms/ 
Privacy: https://www.webwonderland.co.uk/wwsio-privacy-policy/
<h4>2) Web Wonderland Cloud Services (Netlify-hosted endpoints)</h4>
Service: Web Wonderland Cloud Services endpoints (Netlify) 
Domain: stupendous-pie-54cb74.netlify.app 
Used for: Site connect/disconnect, cloud api usage metering, background job coordination, and SmartAlt caption proxy.
Endpoints used: 
– https://stupendous-pie-54cb74.netlify.app/api/sio/connect 
– https://stupendous-pie-54cb74.netlify.app/api/sio/disconnect 
– https://stupendous-pie-54cb74.netlify.app/api/sio/check-reserve 
– https://stupendous-pie-54cb74.netlify.app/api/sio/cron-sites 
– https://stupendous-pie-54cb74.netlify.app/.netlify/functions/sio-smartalt-caption
Data sent: 
– API key (Authorization: Bearer or X-API-Key header, depending on endpoint) 
– plugin version 
– site identifier (e.g. domain) and/or anonymous instance ID 
– for SmartAlt caption generation: the image URL or a data URI for the selected image, and a small request payload (e.g. “usage” mode)
When sent: 
– Connect/disconnect: when you add or remove an API key in the Cloud Services screen. 
– Metering: when cloud processing runs or when SmartAlt is used. 
– Cron coordination: when the plugin is activated and when the optimisation queue state changes. 
– SmartAlt caption proxy: only when you click generate caption / suggestions in the SmartAlt admin screen.
Terms: https://www.webwonderland.co.uk/wwsio-terms/ 
Privacy: https://www.webwonderland.co.uk/wwsio-privacy-policy/
<h4>3) Replicate (AI provider used by Web Wonderland Cloud)</h4>
Service: Replicate (replicate.com) 
Used for: AI image captioning behind the SmartAlt feature (processed by Web Wonderland Cloud).
Data sent: 
– the image data or image URL required to generate a caption (sent by Web Wonderland Cloud, not directly by your WordPress site)
When sent: 
– only when you use SmartAlt caption generation in the plugin admin.
Terms: https://replicate.com/terms 
Privacy: https://replicate.com/privacy

Web Wonderland SEO Image Optimiser

Convert images to WebP and AVIF, add picture markup, and optionally generate SEO alt text & titles using AI. Fast, safe, and theme-friendly.

Marco Di Giacomantonio

I-PR AVIF Converter automatically converts your existing and new images to AVIF format — the most efficient image format available today — without any cloud service, subscription, or API key.
After 1 month of production testing across 6 live sites (5,089 images, 2.2 GB saved), this plugin achieves 40–70% file size reduction with zero visible quality loss and 0% conversion failure rate on both Aruba and Serverplan shared hosting.
<h4>Real Production Results</h4>
<ul>
<li>dermopigmentazioneroma.it — 904 images, 721 MB saved (-68%), Mobile PageSpeed 80/100</li>
<li>mangiaroma.com — 1,213 images, 804 MB saved (-70%), Desktop PageSpeed 97/100</li>
<li>artmerlino.it — 371 images, 167 MB saved (-64%)</li>
<li>apicolturalapegaia.it — 1,069 images, 135 MB saved (-69%)</li>
<li>fnahospitalityroma.it — 432 images, 83 MB saved (-43%)</li>
</ul>
Total: 4,989 images converted. 0 failures. 2.2 GB saved.
<h4>Why AVIF?</h4>
AVIF is the next-generation image format supported by all modern browsers (Chrome, Firefox, Safari 16+, Edge). Compared to JPEG, it delivers 40–70% smaller files at equivalent visual quality. Compared to WebP, it delivers 20–30% better compression. Google PageSpeed Insights and Core Web Vitals (LCP) reward AVIF-optimized sites directly.
<h4>How It Works</h4>
When you upload an image, I-PR AVIF Converter queues it for background conversion via WP-Cron. No page load is blocked. Once converted, images are served automatically via the <code><picture></code> HTML element with a fallback to the original for older browsers:
<pre><code><picture>
 <source srcset="image.avif" type="image/avif">
 <img src="image.jpg" alt="...">
</picture>
</code></pre>
Your original files are never modified unless you explicitly enable “Delete Originals.”
<h4>Key Features</h4>
Zero cloud dependency — All conversion happens on your server using PHP’s native Imagick or GD library. No API keys, no usage limits, no recurring costs.
Works on shared hosting — Tested and production-proven on Aruba Basic and Serverplan Eco/Basic. The plugin auto-detects your server’s encoder (Imagick or GD) and falls back gracefully.
Adaptive batch processing (AIMD) — The plugin learns your server’s speed using an Exponentially Weighted Moving Average and automatically adjusts how many images it processes per cron run. It never causes timeouts or OOM errors.
Memory guard — Before processing each image, the plugin estimates the required RAM based on image dimensions and encoder type (3.5× for Imagick, 1.8× for GD). If RAM is insufficient, the image is deferred to the next batch. No PHP Fatal errors.
Circuit Breaker for Imagick — If Imagick fails 3 consecutive times, the plugin automatically switches to GD and retries Imagick after 30 minutes. No manual intervention required.
Quarantine system — Images that fail 3 conversion attempts are automatically quarantined and excluded from future runs. You can review and retry quarantined images from the admin panel.
Skip Patterns — Exclude specific images or folders using wildcard patterns (e.g., <code>logos/*.png</code>, <code>2024/03/*-banner.jpg</code>). Useful for images where conversion is not desired.
Bulk Scanner — Convert your entire existing media library with a real-time progress bar. The scanner is paginated and runs via AJAX without blocking the admin interface.
Telemetry Dashboard — Real-time dashboard showing conversion rate, average compression ratio, fail rate, performance score, and a rolling chart of the last 200 conversion events.
CDN integration — Automatic Cloudflare cache purge after each batch conversion, so your CDN always serves the latest AVIF files.
Elementor & lightbox support — Gallery lightboxes (Elementor, Fancybox, WP native) are rewritten to serve AVIF in the full-size view, not just thumbnails.
Animated GIF preservation — Animated GIFs are automatically detected (binary frame-count parsing) and excluded from conversion. AVIF does not support animation; the plugin never converts a GIF to a broken static file.
CMYK image handling — Images from professional photography workflows (JPEG with CMYK color space) are automatically converted to sRGB before encoding to prevent color inversion artifacts.
Clean uninstall — Removing the plugin deletes all database tables, options, transients, and the WP-Cron job. Zero ghost data left behind.
<h4>WooCommerce Compatibility</h4>
Tested on two active WooCommerce stores. Product images, gallery thumbnails, and checkout images are all converted and served correctly.
<h4>Encoder Compatibility</h4>
The plugin requires at least one of:
<ul>
<li>Imagick ≥ 7.0.25 with libheif compiled with AV1 support</li>
<li>PHP ≥ 8.1 with GD + libavif (<code>imageavif()</code> function available)</li>
</ul>
The Settings page shows which encoders are available on your server and their current status (including Circuit Breaker state).
<h4>PHP & WordPress Compatibility</h4>
Tested on PHP 7.4, 8.0, 8.1, 8.2, 8.3. Compatible with WordPress 5.8 through 6.7. PHP 8.2+ deprecation warnings have been resolved.
<h3>External Services</h3>
This plugin optionally communicates with the Cloudflare API (<code>api.cloudflare.com</code>) to purge CDN cache after batch image conversion.
This feature is disabled by default and only activates if you explicitly enable “Cloudflare CDN Integration” in the plugin settings and provide your own Cloudflare Zone ID and API Token.
No data is sent to Cloudflare unless this feature is manually configured. The only data transmitted are the public URLs of newly converted AVIF images, which Cloudflare needs to purge from its cache.
<ul>
<li>Cloudflare service: https://www.cloudflare.com</li>
<li>Cloudflare Terms of Service: https://www.cloudflare.com/terms/</li>
<li>Cloudflare Privacy Policy: https://www.cloudflare.com/privacypolicy/</li>
</ul>
All image conversion is performed locally on your server. No images or personal data are ever sent to external services.

I-PR AVIF Converter – Automatic Image Optimization

Convert JPEG/PNG to AVIF automatically. 40-70% file size reduction, no cloud API, works on shared hosting. 4,989 images converted, 0% fail rate.

Web Wonderland SEO Image Optimiser vs I-PR AVIF Converter – Automatic Image Optimization