HTML Checking for Large Sites

Rocket Validator automatically checks your pages on the W3C Validator.

A table row was X columns wide and exceeded the column count established by the first row (Y).

Table rows on the same <table> element must have the same number of columns, which comes determined by the first tr row.

For example, this table is wrong as the first row defines 2 columns, while the second row tries to use 4 columns:



Learn more: * MDN: HTML table basics

Related W3C validator issues

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Let our automated scanner check your large sites using Axe Core and W3C Validator.