Data tables
A data table expresses relationships through rows, columns, headers, captions, and cells.
How it works
Explicit th scope, captions, and simple topology let parsers attach each value to the correct dimension without relying on visual alignment.
How to validate it
Convert the table into records using only markup associations and confirm that every data cell retains its row and column labels.
Common failure
Merged cells, layout tables, and important meaning encoded only by color make extraction ambiguous.
Machine-readable editions
The same article is available as Markdown and JSON. These alternates are linked here but are not submitted through the sitemap or IndexNow.