rank match does not read the table of contents (html code)

Hello,

Thank you for contacting Rank Math, and sorry for any inconvenience caused.

Rank Math only detects the Table of Content if it is added with the compatible plugins. If you’re adding Table of Contents by any other method that does not involve the usage of a plugin, then you can completely disable the test for Table of Contents.

To disable the test of the Table of Contents, add the following piece of code to your theme’s functions.php file:

/**
 * Filter to disable the table of contents test
 */
add_filter( 'rank_math/researches/tests', function( $tests, $type ) {
    unset(
        $tests['contentHasTOC'],
    );
    return $tests;
}, 10, 2 );

I hope this helps. Looking forward to helping you.