Define proper table headers

Properly defined headers allow screen readers to announce the context for each data cell, making complex tables understandable.

Quick Reference

• Use <th> for all table headers, not <td>
• Apply scope="col" or scope="row" to clarify header relationship
• Ensure every data cell is associated with at least one header
• In simple tables, prefer fixing header associations before escalating to caption-level recommendations
• Missing scope="col" on a straightforward header row is often the clearest first fix

Check

Check that all data tables use <th> elements for headers with appropriate scope attributes.

Fix

Convert header cells to <th> and add the correct scope attribute.