---
title: Ensure landmarks are unique | Accessibility Rule
description: DocuLandmarks should have a unique role or role/label/title (i.e. accessible
  name) combination
source_url:
  html: https://testingbot.com/support/accessibility/web/rules/landmark-unique
  md: https://testingbot.com/support/accessibility/web/rules/landmark-unique/index.md
---
# Ensure landmarks are unique

Rule ID: landmark-uniqueUser Impact: moderateGuidelines: Best Practices

The `landmark-unique` rule ensures that all landmark regions on a page have a unique combination of `role`, `aria-label`, or `title`. Landmarks help screen reader users navigate a page efficiently, and duplicate landmark names or roles can cause confusion.

## What is being tested?

This rule checks that:

- Each landmark (such as `<main>`, `<header>`, `role="navigation"`, etc.) has a unique role or unique `role + aria-label` or `role + title` combination.

## Correct markup examples

    <main id="pass-main">Only main</main>
    
    <header id="pass-header">Only header</header>
    
    <form aria-label="form-label-1"></form>
    <form aria-label="form-label-2"></form>
    
    <div id="form-label-1">form-with-label-1</div>
    <form aria-labelledby="form-label-1"></form>
    
    <footer id="pass-footer">Only footer</footer>

## Incorrect markup examples

    <main id="violation-main-1">First main</main>
    <main id="violation-main-2">Second main</main>
    
    <header>First header</header>
    <header>Second header</header>
    
    <form aria-label="form-label"></form>
    <form aria-label="form-label"></form>
    
    <nav aria-label="duplicate label for nav"></nav>
    <nav aria-label="duplicate label for nav"></nav>

These examples fail because they reuse the same role or the same role + label combination multiple times.

## Why it matters

Landmarks allow screen reader users to quickly navigate between sections of a page. When multiple landmarks have the same role or label, it becomes unclear which section each one represents, reducing usability and increasing user frustration.

## Best practices

- Ensure each landmark has a unique role, or a unique combination of `role` and `aria-label` or `title`.
- For repeated landmarks (like multiple `nav` regions), add distinct `aria-label` values (e.g., “Primary Navigation,” “Footer Navigation”).
- Audit your page for repeated landmark roles and add labels where needed to make them unique.

## Other Rules

Interested in other web accessibility rules? Please see these other rules:

- [meta-viewport-large](https://testingbot.com/support/accessibility/web/rules/meta-viewport-large)
- [page-has-heading-one](https://testingbot.com/support/accessibility/web/rules/page-has-heading-one)
- [presentation-role-conflict](https://testingbot.com/support/accessibility/web/rules/presentation-role-conflict)
- [region](https://testingbot.com/support/accessibility/web/rules/region)
- [scope-attr-valid](https://testingbot.com/support/accessibility/web/rules/scope-attr-valid)