How can I find out how much traffic my competitor’s site receives?

Someone told you that I can find out how much traffic your competitors get.

It’s impossible to find out exactly how much traffic your competitors get unless they somehow have their log file statistics out in the open. Sites such as Alexa.com can give you some comparative data, but they will never give you the exact amount of traffic that your competitors receive. The only sites you can get that info from are those to which you have log file access, or those on which you have installed some tracking code. Nobody can just install this sort of thing on their competitors’ sites, as they’d need server access to do so.

That said, there are some tools that can provide you with some competitive analysis such as Comscore, KeywordDiscovery competitive Intelligence, and Hitwise.