Yes, that title is correct. Google has not made any announcement that I’ve heard about regarding this, but you can actually type a query into the search engine to find out what Google’s “gaydar” has determined.
Here’s my test of the latest Google Gaydar functionality:
So there you have it. Perhaps it’s accurate, perhaps it’s something one of the developers put in as an easter egg that got discovered, perhaps it’ll be gone tomorrow. But for right now it’s yet another Google tool that can be used freely from your computer.
It’s probably still in beta, though.