> ## Documentation Index
> Fetch the complete documentation index at: https://docs.get3rd.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Visibility

> Visibility is your headline metric: the share of AI answers across ChatGPT, Claude, Gemini, and Perplexity that actually mention your brand.

**Visibility** is the share of AI answers that mention your brand. It's the first number to look at because it answers the most basic question — *are you even in the conversation when buyers ask AI about your space?*

## How it's calculated

```text theme={null}
Visibility = (responses that mention your brand ÷ total responses) × 100
```

For each prompt, 3RD checks every AI response for your brand. A response where your brand appears counts as "visible." Each prompt is scored individually, and the overall score is the average across all prompts — every prompt counts equally, regardless of how many models answered it.

<Info>
  A **mention** is a detected occurrence of your brand in the answer. Detection is robust to spelling variations, capitalization, possessives, and suffixes, with an AI-based fallback for ambiguous phrasings — so mentions get caught even when the model words them loosely.
</Info>

## How to read it

Visibility is always relative to a filter. The same brand can be at 70% for branded prompts and 8% for unbranded "best X" prompts. Always check which **model**, **market**, **topic**, and **prompt type** you're looking at.

* **Trend matters more than the absolute number.** Watch the direction after you ship changes.
* **Segment it.** Low visibility on **Must-Win** prompts is far more urgent than on Foundational prompts.
* **Compare against competitors** on the Leaderboard, not against an arbitrary target.

## How to improve it

Visibility is downstream of being *useful and citable* for the questions buyers ask. The levers, in order of leverage:

<Steps>
  <Step title="Cover the prompts you're absent from">
    Publish content that directly answers the questions where you have no page. See [Content](/drivers/content).
  </Step>

  <Step title="Earn citations on sources AI already trusts">
    Get featured on the third-party pages models cite for your category. See [Authority & Outreach](/drivers/authority-and-outreach).
  </Step>

  <Step title="Make your own pages extractable">
    Ensure models can cleanly read and quote your content. See [Crawlability](/drivers/crawlability).
  </Step>
</Steps>

<Tip>
  Don't chase 100%. On competitive unbranded prompts, a healthy, *rising* visibility that's at or above your nearest competitor is the real goal.
</Tip>

## Related

* [Rank](/metrics/rank) — how visibility translates into competitive standing
* [Understanding the Overview & Leaderboard](/results/overview-and-leaderboard)
* [Diagnostics](/drivers/diagnostics) — the "why" behind a visibility gap