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.

Sociality

ImgHaste

This WordPress plugin provides integration with our SaaS <a href="https://www.imghaste.com/" title="Image Service" rel="nofollow ugc">Image Service</a> 
By leveraging the Power of <a href="https://www.imghaste.com/blog/client-hints-explained" rel="nofollow ugc">Client Hints</a>.
We’ve chosen to integrate to WordPress via a Service Worker in order to provide best possible compatibility against 
Caching plugins (e.g. W3TC, WPSuper Cache, Elementor…) as well as images coming from your CSS files.
This way you won’t have to rewrite your URLS and lose your images SEO juice.
Nor you will get overcharged in case of a BOT crawl your website.
WHAT DOES THIS PLUGIN DO?
This plugin registers a Service Worker, providing Progressive Web App functionalities to your 
website in order to intercept your Images in order to automatically detect the best possible Image required by your end user.
Since we are speed monkeys, we need to say that the required javascript 
that will load on your page is 708 bytes gzipped. (without a k)
FEATURES OUT OF THE BOX:
<ul>
<li>White Label.</li>
<li>Automatic Integration.</li>
<li>Removes EXIF information.</li>
<li>Compatible with Page Builders.</li>
<li>Effective Connection Type Detection.</li>
<li>Quality drop on slow 3g or Save Data on.</li>
<li>Backup your images for Disaster recovery.</li>
<li>Works with images coming from CSS files.</li>
<li>Search Engines will grab the origin images.</li>
<li>Works with images coming from Ajax requests.</li>
<li>Compatible with Caching / Lazy Load plugins.</li>
<li>Backup your original image safely in the cloud.</li>
<li>Automatic AVIF Conversion based on browser support.</li>
<li>Automatic WebP Conversion based on browser support.</li>
<li>Progressive JPEGs & Interlaced PNGs as Net Gen fallback.</li>
</ul>
FULLY WHITE-LABEL
One of the reasons we decided to go with this approach is no other than SEO. 
Using Client Hints Combined with Service Worker will get you all the performance benefits 
for your end users without the SEO disadvantages that comes with the URL Rewrite.
WHY ITS IMPORTANT NOT TO CHANGE IMAGE URLS
In case you rewrite your image urls into something else all 
SEO juice from all image urls goes to the Vendor domain 
even if the urls contain a canonical name, they are still searchable using the vendor url.
PREREQUISITES
<ul>
<li>Your website runs https only</li>
<li>Your website doesn’t have a Service Worker already.</li>
</ul>
IMPORTANT
This plugin is not compatible with other plugins that registers a Service Worker. You’ll need to disable other plugins 
that registers a service worker on your website or use our <a href="https://www.imghaste.com/docs/" rel="nofollow ugc">Custom Integration Guide</a> and lose the white label feature.

AVIF, WebP, Image Optimization, CDN, Service Worker & Client Hints All in One

Speed up your website using cutting edge Image Service. Service Worker, Client Hints, WebP, 100% white labeled. NO URL Rewrite required.

Web Wonderland SEO Image Optimiser vs AVIF, WebP, Image Optimization, CDN, Service Worker & Client Hints All in One