Yahoo! YSlow vs GTmetrix

Struggling to choose between Yahoo! YSlow and GTmetrix? Both products offer unique advantages, making it a tough decision.

Yahoo! YSlow is a Web Browsers solution with tags like web-performance, page-speed, optimization.

It boasts features such as Grades web page performance, Analyzes page components like JS, CSS, images, Provides optimization tips, Integrates with Firefox and Chrome browsers, Open source tool and pros including Easy to use, Helps improve page load speed, Identifies performance bottlenecks, Free to use.

On the other hand, GTmetrix is a Web Browsers product tagged with performance, speed, optimization, web-pages.

Its standout features include PageSpeed and YSlow analysis, Waterfall charts, Page resources breakdown, Performance recommendations, Customizable performance thresholds, PageSpeed API integration, HAR file downloads, Page screenshots, Email reports, and it shines with pros like Free and easy to use, Detailed performance insights, Actionable optimization recommendations, Customizable performance thresholds, Integrates with other tools via API, Can monitor website changes over time.

Feature	Yahoo! YSlow	GTmetrix
Overall Score	N/A	N/A
Primary Category	Web Browsers	Web Browsers

Product Overview

Yahoo! YSlow

Description: YSlow is a Firefox and Chrome browser extension that analyzes web pages and suggests ways to improve their performance based on Yahoo!'s performance best practices. It grades performance and provides tips to optimize page load speed.

GTmetrix

Description: GTmetrix is a free online tool that analyzes web pages for performance, providing a performance score and recommendations to improve speed.

Key Features Comparison

Yahoo! YSlow Features

• Grades web page performance
• Analyzes page components like JS, CSS, images
• Provides optimization tips
• Integrates with Firefox and Chrome browsers
• Open source tool

GTmetrix Features

• PageSpeed and YSlow analysis
• Waterfall charts
• Page resources breakdown
• Performance recommendations
• Customizable performance thresholds
• PageSpeed API integration
• HAR file downloads
• Page screenshots
• Email reports

Pros & Cons Analysis

Yahoo! YSlow

Pros

• Easy to use
• Helps improve page load speed
• Identifies performance bottlenecks
• Free to use

Cons

• Limited to Firefox and Chrome browsers
• Suggestions not always applicable
• Can only analyze one page at a time

GTmetrix

Pros

• Free and easy to use
• Detailed performance insights
• Actionable optimization recommendations
• Customizable performance thresholds
• Integrates with other tools via API
• Can monitor website changes over time

Cons

• Limited number of free tests per month
• No browser testing
• No visual web optimization
• No A/B testing capabilities
• Only provides recommendations, not fixes

Pricing Comparison

Yahoo! YSlow

• Free
• Open Source

GTmetrix

• Freemium