Google maps has a geolocation feature called "show my location" which detects where you are based on your IP address or cellular phone network data and centres the map accordingly.
Here in South Korea, Daum maps coverage and detail is much better than Google Maps, but as my Korean skills are basic, I can't seem to find the geolocation feature.
It's possible I suppose that they don't have such a feature but I doubt it because it's otherwise a very advanced and very polished website.
(I've now also asked this very same question about Korea's other major mapping webapp, Naver.)