The first column in the table shows the traffic source (who sent the traffic) and the traffic medium. Here’s a list of common traffic mediums, and what each represents.Organic: This is usually traffic that comes to you from a search engine. Someone goes to Google, Bing, Yahoo, or perhaps Ask, searches for something, and then visits your site.We say usually because, sometimes, pay-per-click ads that are running on Google or Bing or Yahoo will show up as organic traffic. If you’re running ads on Google or Bing, for example, and you’re not seeing that traffic in the report in a seperate row, than you may need to link Google Analytics to Adwords (or turn on Bing’s auto-tagging feature).CPC: CPC stands for “cost per click,” and this is always going to be paid traffic from ads.Referral: If a user on another website clicks on a link that takes them to your website, that is often counted as a referral. We say “often” because some websites/clients don’t share this data.Direct: Direct visits come in a few different forms:Some people will type your domain name into their browser and press enterSome people might have bookmarked a page on your website and used that bookmark to returnSometimes, when Google doesn’t know what to do with a visitor, they’ll mark them as “direct”It’s important to note that Google will often throw organic search traffic into the direct bucket. Many analysts have determined that more than half of direct traffic is actually organic search traffic, only this is obviously imprecise.Suffice to say, direct traffic isn’t always direct traffic…(not set): This is just what it sounds like – Google has no idea where this traffic came from. Sometimes, this is because of a technical error on your site. If you see a lot of (not set) traffic in your reporting, you probably have a tracking issue.Getting Deeper Into The Traffic ReportHere are some cool things you can do with the traffic report:1. See which landing pages get the most traffic by medium and/or source. First, at the top of the table, you can select your primary dimension as medium or source.