TASK: Performance Optimization Audit for Core Page Templates

[Arnimag]

User Story

In order to provide a fast user experience, reduce bounce rates, and improve search engine rankings (SEO) through optimized page load speeds
As a Product Owner
I want to audit the performance of live core page templates using public URL-based speed testing and optimization tools

Acceptance Criteria

• Core Web Vitals Pass: Representative URLs must achieve a "Passing" status for Core Web Vitals (LCP, INP, and CLS) on the Google PageSpeed Insights tool for both Mobile and Desktop.
• Performance Score Threshold: Each tested template must reach a minimum Performance score of 90+ on Desktop and 75+ on Mobile as measured by Lighthouse-based URL checkers.
• Resource Optimization: Automated reports from GTmetrix must show zero critical warnings for "Unsized Images" or "Legacy Image Formats" (ensuring WebP/AVIF usage).
• Render Blocking Check: A WebPageTest audit must confirm that no third-party scripts or CSS files are unnecessarily blocking the "First Contentful Paint" (FCP).

Background & Resources

Details: This audit focuses on measuring speed and load efficiency using strictly online "Check by URL" services. We will target the following templates to ensure the site architecture is performant:

• Homepage: Measuring the impact of high-resolution hero banners and marketing scripts.
• Product Detail Page (PDP): Testing the load speed of high-quality image galleries and dynamic product data.
• Category/Listing Page (PLP): Evaluating the efficiency of lazy-loading for product grids and filter logic.
• Functional Pages: (e.g., Cart or Contact Us) Ensuring fast interaction times where user conversion is most critical.

Links/Screenshots: * Google PageSpeed Insights: https://pagespeed.web.dev/

• GTmetrix: https://gtmetrix.com/
• WebPageTest: https://www.webpagetest.org/
• Pingdom Speed Test: https://tools.pingdom.com/