POSTED URL: I do collect the long URL's as this is needed to make short urls.
IP ADDRESS: Our Used service Google Analytics do collect IP, but that is private account and I do not share it publicly.
OS, BROWSER: Our Used service Google Analytics do collect Os info and Browser info, but that is private account and I do not share it publicly.
oURL endeavors strongly to keep data secured. The most important thing is your urls are colected as anonymous source, so there is no threat. The information is available when you do know what you seek.
I are always here to ansIr your questions. Please send us a detailed message to My contact page.