Link

apple-touch-icon

Provides an icon that Apple devices can use when someone saves the site to their Home Screen or installs it as a web app.

Code examples

<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">

Provides a 180 by 180 pixel icon and declares its actual size.

<link rel="apple-touch-icon" sizes="180x180">

Has no href, so Safari has no icon to fetch.

01
Declare the real size
Set sizes to the bitmap icon's pixel dimensions. Safari can choose among multiple declared sizes for different contexts.
02
Keep the link for Safari
Safari may use apple-touch-icon when a web app manifest has no suitable high resolution icon. Do not hide the link with user agent detection.