XML sitemaps and sitemap index pages, help ensure that all the pages in your site are correctly indexed. They are no substitute to a well structured site and comprehensive internal linking strategy. However, they do help ensure the site is correctly indexed and can give additional instructions to the search engines. They can also be used as an effective tool to encourage initial indexing and indexing of pages that may not have been indexed previously for one reason or another.
We can advise on the creation of XML site maps and index pages, providing a strategy for both.
If you would like to get more information on our SEO service, please get in touch.