Metrics · Channel · Acquisition · Monthly · % · Updated 2026-07-21

What is Organic Traffic Share?

Short answer: The percentage of total site traffic coming from unpaid search and referral sources.

Definition

The percentage of total site traffic coming from unpaid search and referral sources.

Formula

Organic sessions / Total sessions x 100

How to measure

Pull channel-segmented session data from analytics and divide organic sessions by total sessions across all channels.

Why track it

A rising organic share signals that content and SEO investment is compounding, reducing long-term dependency on paid spend.

Example

A site's organic traffic share grows from 20% to 55% over 18 months of consistent content publishing.

FAQ

What is Organic Traffic Share?
The percentage of total site traffic coming from unpaid search and referral sources.
How do you calculate Organic Traffic Share?
Organic sessions / Total sessions x 100
Why track Organic Traffic Share?
A rising organic share signals that content and SEO investment is compounding, reducing long-term dependency on paid spend.
What is Organic Traffic Share? Definition, formula, and growth use · Cofounderbase