I want to measure the speed index of a website using Navigation Timing Api but not understanding what all properties represent for the calculation of ...
I want to measure the speed index of a website using Navigation Timing Api but not understanding what all properties represent for the calculation of ...
I have high blocking time on my page and I'd like to reduce it. My problem is: how to deal with long task on layout ? I know there is also issue lon ...
Not sure whether anybody has similar query here, assume we do a performance tracing on a single page application completely loaded on a url, how to ge ...
I have a lot of images on my website and that makes my website load too slowly. should I create a small image with low quality and small size and make ...
I'm testing my site on PSI and see varying results on Edge vs Chrome (both are on incognito). This difference could be based on other factors - which ...
I'm trying to create a custom video player in React and I want it with the best performance possible. When tracking the video states like play, curren ...
I would like to gather the "Largest Contentful Paint" metric programmatically in the "field" on actual user page loads and report it to a data collect ...
I am building a personal blog using Hugo and deploying it to Netlify, and I ran it, out of curiosity, through the Chrome Lighthouse. To my surprise, t ...
I have a basic header that has a max-width and margin applied (standard stuff) in order to position it horizontally in the middle of the page. Howeve ...
I'm trying to parse the results of the performance profiler tool, but I've googled everything and I cannot find anything. Where to dump profiler jsonf ...
These two snippets log matching paint entries in Chrome, Firefox, Edge, and Opera. However, in Safari 15.3 the PerformanceObserver approach doesn' ...
The Largest Contentful Paint (LCP) score varies around 2.5s to 2.7s for below web page, as per both Lighthouse report from Chrome Incognito as well as ...
I'm working on a legacy react-app, hence lot of pieces cannot be reasoned about but simply accepted. So, I have a couple of components that load a lo ...
I am using the below code to fetch Google font. Despite of using media="print", lighthouse detects the font to be render-blocking. How do I make it no ...
My web site uses RequireJS for loading other scripts. Unfortunately the pages are compositions of independent little applications that are provided as ...
I currently use this function to add tooltips to each table cell according to their row name (left-most cell in the row) and column name (value of top ...
Google has launched a new way of measuring Cumulative Layout Shift (CLS). But somehow I am not able to understand the new definition from the articles ...
I want to set a responsive image in my webpage using tailwind css. I have provided sufficient classes to make it work on different screen sizes. Now I ...
I am building a large private (ie used behind a firewall) PWA and wondering how to improve the diagnostics if/when my users hit issues. I already have ...
I am working on the web vitals for a website and I was checking the Chrome Developer Tools the Network tab. The website loads fully, but I see that in ...