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Axe Core Guide

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Axe Core 4.6

Non-empty <td> elements in larger <table> must have an associated table header

Markup for data tables can be tedious and perplexing. Tables must be semantically marked up and have the proper header structure. Table navigation is made easier by features in screen readers, but for these capabilities to function properly, the tables must be precisely marked up.

Tables are announced in a certain way by screen readers. The potential for unclear or erroneous screen reader output exists when tables are not properly marked up.

Screen reader users are unable to correctly understand the relationships between the cells and their contents visually when tables are not adequately structured and marked up semantically.

What this Accessibility Rule Checks

Verifies the correct header structure and semantic markup of data tables.

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