Nested HTML Tables

Check if your site is using nested tables, which can slow down page rendering. A nested table is an HTML table containing another table inside it. Use of nested tables can slow down page rendering in the user's browser.

How do I fix it?

In order to pass this test you must use a CSS layout for your page. You will have many advantages if you'll use CSS instead of HTML tables for formating your content: accessibility, bandwidth savings, maintainability.