Redirect Detective

Redirect Detective is a free URL redirection checker that allows you to see the complete path a redirected URL goes through.

Some of the many uses for Redirect Detective are:

See where an affiliate link goes to and what affiliate network is being used.
Check if those bit.ly links (or similar URL shortners) redirect to a legitimate site.
Check your own redirects to ensure they work correctly.
Check to see if your redirected domain correctly redirects to your new domain.
See at what point in the redirection path cookies are being set.
Avoid being tracked by not being redirected via adware/tracking sites.
Discover just how many redirects certain sites use. You might be surprised to how many.

Some examples of well known sites that use redirects are: