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Using Modern Image Formats: AVIF And WebP

Smashing Magazine

Tip: When evaluating quality, compression and fine-tuning of modern formats, Squoosh.app ’s ability to perform a visual side-by-side comparison is helpful. The AV1 image file format (AVIF) is an open-source image format for storing still and animated images. Large preview ). Jump to table of contents ?. Large preview ).

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Measuring The Performance Of Typefaces For Users (Part 1)

Smashing Magazine

How would we test to see if there is any difference between a good sans serif and a serif typeface with users? This diversity adds to the difficulty and complexity of defining and testing typefaces. For a proper test setup you would need to modify one parameter while keeping every other parameter unchanged.

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World’s Top Web Performance Leaders To Watch

Rigor

Sergey is an open source developer, tireless educator on performance topics, and author of many web performance-related tools, including ShowSlow , SVN Assets , drop-in.htaccess and more. He tweets about Chrome initiatives, open source tools, and performance news @ paul_irish. Paul Irish. Paul Irish. Scott Jehl.