WD 092

Image Optimization

All images are optimized to be rendered in the browser. WebP format could be used for critical pages.

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Knowledge Brief

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Related Knowledge

User Experience
Loading Speed
Brand Imagery
Image Alternative Text
Retina Images
Sprite Images

Related Knowledge

UX 003

User Experience

It refers to a person's emotions and attitudes about using a particular product, system or service.

WD 050

Loading Speed

To avoid hiccups and slow processing of webpages, improve if > 2 seconds.

BD 006

Brand Imagery

Consider the depth of meaning that images can add to the brand identity.

WD 095

Image Alternative Text

All <img> have an alternative text which describe the image visually.

WD 093

Retina Images

Provide layout images x2 or 3x, support retina display.

WD 094

Sprite Images

Small images are in a sprite file, it can be in an SVG sprite image for icons.