Testing the performance and dimensions of the images

[d-oit]

Image Load Times: Measure and analyze the loading times of individual images and groups of images.
Tools: Browser developer tools (Network tab), Lighthouse, GTmetrix, WebPageTest.
Metrics: Time to First Byte (TTFB), Largest Contentful Paint (LCP), Total Blocking Time (TBT).
Image Compression: Verify that images are adequately compressed without significant loss of quality.
Check: File sizes of images before and after optimization.
Action: If necessary, re-compress images using appropriate tools (e.g., ImageOptim, Squoosh).
Lazy Loading Implementation: Confirm that lazy loading is correctly implemented for off-screen images to improve initial page load times.
Verify: Images outside the viewport are not loaded until scrolled into view.
Caching: Assess browser caching for images to ensure subsequent visits load faster.
Check: Appropriate caching headers are set for image assets.
Dimension Testing:

Responsive Images: Verify that images scale correctly and display appropriately on different screen sizes (desktop, tablet, mobile).
Check: Use various device emulators in browser developer tools.
Ensure: Images use srcset and sizes attributes effectively for adaptive delivery where applicable.
Aspect Ratio: Confirm images maintain their correct aspect ratio across different resolutions to prevent distortion.
Excessive Dimensions: Identify if images are being served at dimensions larger than their display size, leading to unnecessary bandwidth consumption.
Action: Resize images to optimal display dimensions.
Cross-Browser Compatibility:

Test image rendering and performance across major web browsers (e.g., Chrome, Firefox, Safari, Edge) to ensure consistent behavior.
Reporting and Recommendations:

Document findings from all tests, including identified issues, performance metrics, and problematic image assets.
Provide concrete recommendations for optimizing images and improving overall image handling.
Expected Outcome:

A comprehensive report detailing image performance and dimension analysis.
Identification of all images requiring optimization.
Clear recommendations for improving image loading, responsiveness, and overall visual quality.
Improved user experience due to faster and more efficient image rendering.
Priority: High

This task aims to ensure that the image handling on the d-oit.github.io blog is efficient and provides an excellent user experience.

You can find the original ToDo item mentioned in the blog post here: Enhanced Image Handling on d-oit.github.io