Cover Your Tracks
coveryourtracks.eff.org
Measures how uniquely identifiable your browser is to a tracker
No sign-up
Loading page
coveryourtracks.eff.org
Measures how uniquely identifiable your browser is to a tracker
flightradar24.com
Shows aircraft moving in real time, with the tail number and where it came from
marinetraffic.com
Live positions for merchant ships, ferries and yachts broadcasting AIS
thestorygraph.com
Recommends books by mood and pace rather than by what is selling
wheregoes.com
Follows a shortened link through every redirect and names the final destination
Cuts across
A tag is orthogonal to the category tree — that is what makes it worth having.