Email in web analytics is an acquisition channel: traffic that lands on your site after a user clicks a link […]
Source
Direct
Direct (a.k.a. “direct traffic”) is the bucket your analytics uses when a session arrives without a detectable referrer or campaign
Referral
Referral (aka referral traffic) is any visit that lands on your site after a user clicked a link on another
Paid Search
Paid search is the practice of buying ad placements on search engine results pages (SERPs) to capture intent-driven traffic. You
Organic search
Organic search is traffic that arrives on your site from unpaid search engine results. A user types a query, sees
