Today I was using DuckDuckGo website to look for some exhibitions. I typed "Ausstellung" (German word for exhibition) and accidentally pressed Enter. What happened next was interesting. The search result was full of pages related to my city!!!
I don't live in Berlin any other big city. I live in a small city, and the result was all about exhibitions in my city.
As far as I know Bing serves the DuckDuckGo results. And DuckDuckGo privacy policy says that it doesn't share our IPs with Microsoft. If it's true, how could it happen?
To me, it means only one thing: Bing knows my IP or at least my city and country.
Update: it seems that it only happened in desktop version of the website. `t` param should be `fpas` or `ffab`, it seems.
If you live in a German speaking country you can try this:
https://duckduckgo.com/?q=Ausstellung&t=fpas&ia=web
Update 2: I updated the title from "shares location" to "shares users IP" to make it more clear.