source

The source of traffic is the place where the traffic originates from.
The "source" answers the question: how did a visitor find my site?

In the Opentracker reporting system, sources are also called "referrers", because incoming traffic is referred from a 3rd party source. Technically a referred visitor clicks from a 3rd-party domain / URL into your domain. Sources are other websites sending you traffic through PPC campaigns, banners, ads, affiliates, blogs, etc.

Most likely, search engines will form the majority of your traffic sources.

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