What does it mean when the apple-touch-icon.png was requested

Question

I know what the apple touch icon is, and I have seen an apple desktop before, so I can imagine what it would look like. I also know how to add an apple touch icon to my site

Answer 1

When somebody using an iOS device visits your web-page and decides to "bookmark" your page by affffding your page to their Home screen the apple touch icon is used. It is like a favicon for browsers but has higher resolution and "might be designed" to match app icons ...