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What are the best multi-browser testing tools?

Testsigma

seconds to form an opinion on a website — and whether they’ll use it or not. The same report also states that 57 percent of the population won’t recommend a non-responsive website. MultiBrowser supports testing on all versions of Chrome, Firefox, Edge, and Internet Explorer 11. According to Sweor , users take only 0.05

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A Deep Dive into Native Lazy-Loading for Images and Frames

CSS - Tricks

Today's websites are packed with heavy media assets like images and videos. Images make up around 50% of an average website's traffic. The obvious problem with this approach is the length of the critical path for displaying the website. Many of them, however, are never shown to a user because they're placed way below the fold.

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