Additionally, compressing images can have a significant impact on your website’s egress costs and the environment. Reducing the overall size of a website means less data is transferred, which lowers bandwidth costs and energy usage. Websites that are lighter and faster are more efficient and eco-f...
How to fix the big image issue ? Pure HTML approach : Non optimized : <img src='https://placeimg.com/800/400/tech' class='img-responsive img-center'> Optimized : In this example we provide multiple urls for the same image. The browser will pick a specific url depending on the width of the scre...
How to check if the website contains blocking JavaScript? Test the website on PageSpeedInsight and look for this warning “Eliminate render-blocking JavaScript in above-the-fold content”. The tool will list the blocking files but I recommend you to double-check in the source code. To do so, look ...
In this step, the server can perform different tasks, like requesting data from a database, calling a web-service, or calculating results… How to check the Time To First Byte? Go to https://WebPageTest.orgi In this example, we can see that the TTFB is 4335 ms, which indicates a TTFB issue. Pay...