Is it possible to search something in all the chat groups, across SE websites?
For example, I know how to search on StackOverflow chats (I go to
chat.stackoverflow.com) and search there, but how to do the same for all the SE websites?
Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. It only takes a minute to sign up.Sign up to join this community
Such thing is not possible within Stack Exchange itself, so the only workaround I can think of is using Google search and limit it to specific domain.
For example searching for pink unicorn in all chat.stackexchange.com chat rooms:
If you're just looking to search chat for other SE sites (not just Stack Overflow), the chat system is available under chat.stackexchange.com - you can search this just as you would with Stack Overflow chat.
There's also a third chat server for this site, Meta Stack Exchange, found at (unsurprisingly) chat.meta.stackexchange.com. Again, you can search this as you do SO chat.
There is no built-in way to search all three chat networks simultaneously; you need to search each one individually or use an external tool.