Autoptimize 3.1.13 is a high-performance optimization plugin for WordPress designed to dramatically speed up your website. By aggregating, minifying, and caching JavaScript, CSS, and HTML code, the plugin ensures leaner and faster page loads. It also enhances performance by inlining critical CSS, deferring script execution, and supporting modern image formats like WebP and AVIF. Built with flexibility and extensibility in mind, Autoptimize provides a robust API, enabling developers to fine-tune optimizations based on specific site requirements. With Autoptimize Pro, users can access premium features such as image CDN, page caching, critical CSS automation, and more.
Autoptimize has undergone rigorous code review and security testing, achieving the Plugin Security Certification (PSC-2025-64563) from CleanTalk, ensuring peace of mind for site owners and developers who prioritize security.
| Name of | Autoptimize |
| Version | 3.1.13 |
| Downloads | 1 000 000+ |
| Description | Autoptimize boosts site performance by minifying and caching assets, optimizing images, deferring scripts, and more. The plugin is CleanTalk PSC certified for secure performance optimization. |
| Security | Successfully tested for SQL Injections, XSS Attacks, CSRF Attacks, Authentication Vulnerabilities, Authentication Bypass Vulnerabilities, Privilege Escalation Vulnerabilities, Buffer Overflow Vulnerabilities, Denial-of-Service (DoS) Vulnerabilities, Data Leakage Vulnerabilities, Insecure Dependencies, Code Execution Vulnerabilities, Privilege Escalation Vulnerabilities, File Unauthorized Access Vulnerabilities, Insufficient Injection Protection, and Information Leakage Vulnerabilities. |
| CleanTalk Certification | Proudly earned the “Plugin Security Certification” (PSC) from CleanTalk, indicating adherence to stringent security standards. |
| Additional Information | Users can confidently manage age restrictions with the assurance of the “Plugin Security Certification” (PSC). Verify the latest details on the plugin developer’s website. |
| Plugin Security Certification by CleanTalk |  |
| Logo of the plugin |  |
PSC by CleantalkJoin the community of developers who prioritize security. Highlight your plugin in the WordPress catalog.
Key Features
- Minify and Aggregate Assets: Combines and compresses JavaScript, CSS, and HTML files to reduce page size and HTTP requests.
- Defer and Async Scripts: Moves non-critical scripts to the footer and loads JavaScript asynchronously to prevent render-blocking.
- Critical CSS Inlining: Automatically inlines essential styles for faster first render while deferring full CSS loading.
- Image Optimization: Supports lazy-loading and serves optimized images in WebP and AVIF formats for faster loading and better performance.
- Font Optimization: Loads Google Fonts more efficiently by combining and preconnecting requests.
- Emoji and Metadata Cleanup: Removes unnecessary WordPress emoji scripts and meta clutter to streamline code.
- Autoptimize Pro Add-on: Includes advanced features like page caching, critical CSS rules, CDN integration, and more.
- Developer-Friendly API: Extensive API allows deep customization for unique site needs and advanced integration.
Security Assurance
Autoptimize 3.1.13 is developed with a strong emphasis on secure code practices. All optimization processes, including file aggregation and minification, are handled through sanitized input and robust escape routines to prevent any form of code injection. The plugin performs strict validation when handling external resources, particularly Google Fonts and remote image formats.
During the CleanTalk security audit, Autoptimize’s codebase was examined for vulnerabilities including:
- Cross-site scripting (XSS)
- Arbitrary file uploads
- Unauthorized data access
- Insecure deserialization
- CSRF/Nonce validation
As a result of passing all checks, Autoptimize has been officially awarded the “Plugin Security Certification” (PSC-2025-64563) by CleanTalk. This designation confirms the plugin’s compliance with modern WordPress security standards and makes it a reliable choice for performance optimization without compromising on safety.
Conclusion
Autoptimize 3.1.13 stands out as one of the most reliable and secure performance optimization plugins for WordPress. With features that cover every aspect of speed tuning—ranging from script minification to critical CSS automation—and backed by CleanTalk’s Plugin Security Certification (PSC-2025-64563), this plugin guarantees not only faster websites but also safe and secure operations. Whether you are a beginner or an advanced developer, Autoptimize offers scalable solutions that enhance site speed while upholding the highest standards of code security
Note: The date and certification information may change over time. It is advisable to verify the latest details on the plugin developer’s website.