Dr. Speed: AI Assets Scanner – Debloat & Dequeue Unused CSS/JS

Dr. Speed: AI Assets Scanner debloats WordPress by automatically finding unused CSS and JavaScript on individual pages. It scans desktop and mobile pages, VERIFIES asset-unloading candidates, and prepares per-page rules to dequeue unnecessary files.

Unload files where they aren’t needed to speed up pages and reduce HTTP requests, page weight, bandwidth, and browser work. Fewer scripts and stylesheets per page means better performance and page speed. Review the results before applying rules.

Unload unused CSS and JavaScript to optimize page speed

Most WordPress sites load every plugin’s CSS and JavaScript on every page: a contact-form script on the blog, a slider stylesheet on checkout, a page-builder bundle on a plain post. AI Assets Scanner is an AI-assisted asset manager for exactly that problem. It finds the unused CSS and unused JavaScript files on each page, checks that removing them is safe, and gives you per-page dequeue rules. Applied with Code Unloader, those rules unload the files on the pages that do not need them, which is the fastest way to debloat a site and optimize CSS and JavaScript loading without touching your theme, your plugins, or the files themselves.

Official plugin homepage, features, and scan credits:
https://wpservice.pro/our-products/ai-assets-scanner/

Recommended companion: Code Unloader

I recommend using AI Assets Scanner with Code Unloader, my free WordPress plugin for unloading CSS and JavaScript. Both plugins are developed by Dalibor Druzinec at WPservice.pro.

Code Unloader:
https://wordpress.org/plugins/code-unloader/

AI Assets Scanner generates the rules; Code Unloader applies them. Install Code Unloader on the scanned site for one-click Push/Sync or manual JSON import.

Use Sync to add recommendations while keeping your existing rules. Push replaces the active setup after taking a snapshot. You can undo the last Push/Sync.

What the scanner does

• Unload unused CSS and JS per page: the rules dequeue whole files where a page does not need them. Nothing is minified, rewritten, or deleted.
• Automatic discovery: choose pages, posts, and custom post types from your sitemap or database.
• Desktop and mobile scans: inspect page assets in a real browser and review page-level recommendations.
• Safe and Aggressive groups: separate assets not loaded on a page from loaded assets that passed removal checks.
• Protected assets: safeguards retain detected payment, form, anti-spam, analytics, and WordPress core assets and report what was kept.
• Optimizer awareness: detect supported tools such as WP Rocket, FlyingPress, LiteSpeed Cache, Autoptimize and Perfmatters, and report scan bypass status.
• History and exports: review credit usage, re-download JSON rules, and export scan history to ZIP.
• Access guidance: configure Cloudflare/firewall access or HTTP Basic Auth for protected staging pages.

Free plugin, credit-based scanning service

The plugin is free; browser scans run on the paid WPservice.pro service. An API key and credits are required. New sites can request free starter credits in Settings.

A billable page scan costs one credit. Extra Time (ET) can add one credit when the extended scan runs. Results show credits used and returned. See the official homepage for current packs.

The scanner does not add scripts or styles to ordinary visitor requests. Its frontend scan helpers run only for requests with a valid one-time scan token.

Help and support

Support is handled on the WordPress.org forum. For setup or scanning issues, include your plugin version, scan ID, and the displayed error:
https://wordpress.org/support/plugin/dr-speed-ai-assets-scanner/

If the plugin helps your site, a review helps others find it:
https://wordpress.org/support/plugin/dr-speed-ai-assets-scanner/reviews/

External services

This plugin connects to two services run by WPservice.pro. Nothing is sent until you either save an API key or click Validate your key in Settings.

wpservice.pro API (https://wpservice.pro/wp-json/cu-scanner/v1/) handles accounts and credits.

• When you click Validate your key: your site’s domain and the plugin version, to create a free API key (first install) or restore this site’s existing one.
• When you save or refresh your key: the API key and your site’s domain, to check the key and read your credit balance.
• When you start a scan: the number of pages, your domain, and the API key, to reserve credits. Credits are charged or returned when the scan ends.
• During a scan: status events tied to the scan ID, so the scan can be billed and supported. They contain the names of caching or optimization plugins detected on your site, whether each was paused for the scan, and hashed (unreadable) page paths.
• If someone requests your site with an invalid scan token: one security event with a hashed IP address, user agent, and path, sent at most once every 10 minutes.

Scanning worker (https://scanner.wpservice.pro, with https://cu-scanner-railway-production.up.railway.app as its fallback address) renders your pages. The plugin tries the first address and uses the second only when the first cannot be reached at all.

• When you start a scan: the page URLs, your API key, a one-time scan token, the scanner secret the plugin generates for CDN rules, a summary of detected caching or optimization plugins, and the plugin version. If you entered an HTTP Basic Auth login for a staging site in Settings, that login is sent too, so the worker can open protected pages.
• The worker then loads those pages from your site in a headless browser, the same way a visitor would.

Checks from your server before a scan. When you start a scan, the plugin itself sends requests from your WordPress server: to detect caching, CDN and firewall setups on other sites you scan, and to check that each site’s firewall lets the scanner in. These requests go only to the sites you chose to scan: the pages you selected and, at most, each site’s root address. The caching check follows up to three redirects from those pages, which can lead to another address, and sends no credentials. The requests identify themselves with a user agent containing “CU-Scanner”, except one comparison request per site with an ordinary browser user agent, sent only when that site has already refused the named ones. For your own site only, the firewall check carries your Scanner Secret header, and your staging login if you set one. Nothing is sent to WPservice.pro by these checks.

The Buy credits button opens wpservice.pro with your free key and domain in the address, so the purchase is linked to your site.

Service terms: https://wpservice.pro/terms-and-conditions/
Privacy policy:https://wpservice.pro/privacy-policy/