Mustang WPO — See Your Performance Clearly

Mustang WPO (Web Performance Optimization) helps you audit, view, and manage your site’s performance without leaving WordPress.

IMPORTANT: This plugin requires a valid Google Cloud API Key with the PageSpeed Insights API enabled to function. The plugin will not work without this API key.

Key Features

• Dashboard Widget — At-a-glance performance overview on your WordPress dashboard showing Mobile and Desktop scores
• PageSpeed Performance Scores in List Tables — View mobile and desktop PageSpeed Performance scores directly in your post/page list tables
• Block Editor Integration — Run PageSpeed audits and view results in the Gutenberg editor sidebar
• Performance Budgets — Set performance budgets per post type
• Global Audit — Audit all your content at once with batched processing

How It Works

1. Install and Activate — Install the plugin and activate it
2. Configure API Key — Add your valid Google Cloud API Key with the PageSpeed Insights API enabled in Mustang WPO > Integrations
3. Set Budgets — Configure performance budgets for different content types
4. Run Audits — Use the editor sidebar or global audit to measure performance
5. Monitor Results — View scores in list tables

Performance Budgets

Set performance budgets for each content type: * Max Load Time (LCP) — Largest Contentful Paint in seconds * Max CLS — Cumulative Layout Shift (unitless) * Max INP — Interaction to Next Paint in milliseconds * Max Page Weight — Total page size in MB

API Integration

Mustang WPO integrates with Google PageSpeed Insights API v5: * Required API Key — A valid Google PageSpeed Insights API key is mandatory * Supports both mobile and desktop strategies * Handles API quotas and rate limiting (240 requests/minute) * Graceful error handling for network issues * Secure API key storage with encryption

Support

For support, feature requests, or bug reports, please visit the WordPress.org support forums.

Privacy Policy

Data Collection and Usage:

Mustang WPO requires a Google API key to function. Here’s what data is collected and how it’s used:

Data Sent to Google: * URLs of your website pages (for performance analysis) * No personal data, user information, or content is transmitted * API requests include your website URL and strategy (mobile/desktop)

Data Stored Locally: * PageSpeed audit results are stored in your WordPress database * Your API key is encrypted and stored securely in your database * No data is sent to third parties other than Google PageSpeed Insights API

Google’s Privacy Policy: This plugin uses Google PageSpeed Insights API. Google’s collection and use of information is governed by Google’s Privacy Policy.

API Key Security: * Your API key is encrypted using WordPress security salts * The full API key is never displayed in plain text * API key is stored in your WordPress database, not transmitted to external servers

Rate Limiting: The plugin enforces a rate limit of 240 requests per minute to prevent abuse and comply with Google’s API terms.