Adding a sitemap to Google Search Console is essential to help Google index your website efficiently. Log in, select your website (property), go to 'Sitemaps' in the left menu (under 'Indexing'), type the URL of your sitemap (often sitemap.xml) in the box, and click 'Submit'.
Step-by-step guide to adding a sitemap:
Log in to Google Search Console.
Select your website (property) on the left.
Click 'Sitemaps' in the left menu (under the heading 'Indexing').
Under 'Add new sitemap', type the extension of your sitemap (e.g., sitemap.xml, sitemap_index.xml, or page-sitemap.xml).
Click 'Submit'.
Important tips:
Location: The sitemap must be located in the root of your site (e.g., domainname.be/sitemap.xml).
Verification: After the sitemap has been submitted, it may take some time for Google to process it. The status will change to "Successful" over time.