How do you know if your website utilizes Mobile-First Design?
Mobile-first design is a buzz word because it's now the priority PageSpeed performance measurement provided by Google through its Lighthouse engine. Utilizing Google's PageSpeed and Mobile-friendly tests provides benchmark measurements for your website's "mobile friendliness."
What role does Lighthouse play in Mobile-First web design?
Google Lighthouse is the engine behind Google's PageSpeed Insights that analyses web apps and pages providing real-time performance metrics and action opportunities to improve website performance. Website testing services throughout the web utilize Lighthouse to provide performance metrics of the websites analyzed.
What is First Contentful Paint?
First Contentful Paint refers to the time it takes the browser to display the first text or image on your web page. This is one of six metrics Lighthouse uses to grade your site's performance. One of the most common culprits causing sites to fail this metric is webfonts.
What is Speed Index?
Speed Index measures how quickly your site visitor can see your web page's content when they visit the page. This makes a huge impact on your website's overall user experience. It is a performance metric that can make or break keeping a visitor on your website.
What is Largest Contentful Paint?
Largest Contentful Paint is the time it takes for the largest image or text block to become visible to the web page visitor. This includes images and text visible to the visitor before scrolling down for more content.
What is Time to Interactive?
Time to Interactive is basically how fast the web page's features are fully interactive to your site's visitor. This means anything on your site that reacts when the visitor touches it (clicks on it) or types into form fields works without delay.
What is Total Blocking Time?
Total Blocking Time measures how quickly your web page accepts user input, including screen taps, mouse clicks and keyboard typing. This web page performance metric impacts your page's Time to Interactive performance metric.
What is Cumulative Layout Shift?
Cumulative Layout Shift measures any unexpected movement to your web page's layout that impacts the page's visual stability. To the site visitor, layout shifts detract from the web page often resulting in jerky movements that moves text, images, buttons and more.