I like building dashboards for the various products I build. A common technique (that I'm sure I borrowed from another platform) that I like to employ is that on these dashboard pages, when I link out to other resources (eg. developer platforms, Google Sheets to help manage a product, etc), I want to drop in the favicon for the host.
Mainly, it helps me visually identify the 3rd party link so that I can quickly navigate it.
It's been open sourced, and is available on GitHub.
At the moment, it's setup to use DuckDuckGo as the provider for favicons, however it has the ability to use either Google or 1Password's favicon API as well (in progress).