What sizes are the images available through the /sites endpoint?

Question

I see logo_url, icon_url, favicon_url, high_resolution_icon_url... But I wasn't able to find any information about any of those images in the documentation. Are any of them fixed size? And/or is there a place where I can find the intent for each of those images?

Answer 1

"Are any of the fixed size?"

I can't really answer that question directly, but for reference, the dimensions of the images supplied by the API for Stack Overflow are as follows:

Image:                    Dimensions:
=====================================
logo_url                  250x61
icon_url                  158x158
favicon_url               16x16
high_resolution_icon_url  316x316

I didn't have the patience to verify if the other sites used the same dimensions - but I would assume that they do.

"And/or is there a place where I can find the intent for each of those images?"

There is nothing in the documentation (that I am aware of) indicating specific intents for these images. But here is my humble opinion on each of the images:

• logo_url - this image contains not only the site logo but also the name of the site in the appropriate font. I can't really see a valid use for this that wouldn't violate the trademark guidelines, however - but you never know.
• icon_url - the primary purpose of this image (judging from the filename) is to serve as an apple-touch-icon - an image that will be used by iOS devices when a page is bookmarked. Of course, there are a lot of other things such an image could be used for.
• favicon_url - this image is provided in .ico format so I can't really see much use for it.
• high_resolution_icon_url - basically the same as icon_url but a much higher resolution. This might be valuable on high resolution displays or an area of your site that requires a really large copy of the logo.