We need to add Self-Referencing Canonical URL in any page manually?

Hello,

Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.

From your screenshot, it seems that you have inspected your sitemap URL. The sitemaps, by default, are set to noindex as it is not meant to be indexed and appear in the search results.

The sitemap should only be submitted in the sitemaps sections in the Search Console.

Regarding the canonical issue, it seems that your search function and filtered pages are set to index. Search result pages are usually not heavy on content, and they will not be indexed anyway. So, we recommend that you turn this setting on and No index your search results pages in Rank Math > Titles & Meta > Misc Pages

For the filtered pages, you can add this code to set them to noindex:

// Noindex filter queries
add_filter( 'rank_math/frontend/robots', function( $robots ) {
$url = home_url( $_SERVER['REQUEST_URI'] );
if (strpos($url,'?utm_') !== false || strpos($url,'?filter_') !== false || strpos($url,'?orderby=') !== false) {
$robots['index'] = "noindex";
$robots['follow'] = 'nofollow';
};
return $robots;
});

And here’s a link to how to apply this to your site:
https://rankmath.com/kb/filters-hooks-api-developer/#adding-filters-and-hooks-in-rank-math-php

I hope that helps.

Thank you.

Hello,

1. The filter will work for all the URLs that have ?filter, ?utm, and ?orderby in them. You can add more conditions if you want to apply it to more URLs with different parameters.

2. Once the filter is applied, you just need to validate the fix in your GSC account and the issue should be resolved once Google recrawls the URLs.

Let us know if you need any other assistance.