Check Server Header & Check Redirects Tool
One of the first tests we run on any website is a redirect checker, it is important to make sure that websites use 301 redirects rather than 302 redirects when redirecting pages. This is a common mistake by developers.
A 302 redirect once removed Business.com from the Google index, and can sometimes cause pages to be devalued by Google. Yahoo and Bing seem to handle 302 redirects and automated penalization better.
Redirects and meta refresh redirects that do not pass a 301 directive in the server headers can cause issues. 302 and 307 redirects generally cause more harm then good. Your best bet is to avoid them whenever possible.
Its also a good idea to make sure your error pages pass the correct information. It is common to see 404/Custom error pages incorrectly pass a 302 and then a 200 rather then the 404 which it should pass. Our tool will read the redirect at the server level, the same way a search engine would.