> For the complete documentation index, see [llms.txt](https://help.rankability.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.rankability.com/track/organic-vs-ai-referral-traffic.md).

# Understanding organic search vs AI referral traffic

Learn what organic search and AI referral mean in the GA4 card, which sources map to each category, and how to use the traffic source breakdown strategically.

Rankability automatically classifies your GA4 traffic sources into two categories so you can understand how users find your site through traditional search versus AI platforms.

## Organic search sources

These are sessions from traditional search engines where your pages appear in organic results:

* Google
* Bing
* Yahoo
* DuckDuckGo
* Ecosia
* Brave
* Baidu
* Yandex
* Naver
* Sogou

## AI referral sources

These are sessions from AI platforms that cited or linked to your content in their responses:

* ChatGPT
* Gemini
* Perplexity
* Claude
* Copilot
* Meta AI
* Mistral
* You.com
* Poe

## Why the split matters

Separating organic from AI referral traffic lets you answer important strategic questions:

* **Is AI driving real visits?** – If AI referral sessions are growing, your content is being cited by AI platforms. This is a signal to double down on structured, authoritative content.
* **How do the two channels compare?** – Comparing session counts and conversion rates between organic and AI referral helps you allocate effort.
* **Which AI platforms cite you most?** – The traffic sources breakdown table shows individual AI platforms ranked by sessions. You can focus optimization on the platforms already driving traffic.

## Using the source filter

The source filter popover in the GA4 Performance card lets you drill into specific sources. Use the preset buttons:

* **All** – Show all sources combined.
* **Organic** – Filter to traditional search engines only.
* **AI** – Filter to AI platforms only.

You can also check or uncheck individual sources for a custom view. The metric tiles, chart, and table all update to reflect your selection.

## Related articles

* [Connecting and using Google Analytics 4](/track/connecting-google-analytics.md) — Set up the GA4 integration.
* [Understanding SPI](/track/understanding-spi.md) — How AI visibility factors into your overall search performance score.


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