Hello,
webkit is the Apple's web browsing framework; these are the most likely possibilities:
1) you have browsed to this page sometimes in the history; Safari remembers it and tries to access the page. This usually happens when you start Safari or type a url to the browsing bar. For this, try to clear browsing history in Safari.
2) some other application which you have installed uses webkit framework to access this page. I am not sure how to detect the potential culprit app. Maybe close as many app as possible?
3) From the fact the url is changing, I would also guess that this could be triggered by some of your opened web pages. Try to close all of these.
Please note that Apple stores a lot of stuff to the cloud, so reinstall does not help in some cases as various configuration synchronises back to the computer afterwards.
Kind regards,
Ondrej Kolacek
