What You Need to Know About Site Maps

A site map is blueprint of how all the pages in the site are linked. Sitemaps make navigating your site easier. Updating your Sitemap benefits your users and your site in terms of search engines.
In robots.txt, you instruct search engines on which parts of your site to exclude from indexing. Your site map instructs search engines where you would like them to go.

Site Maps immediately inform search engine robots about changes to your website. If your site is new, or if you have made a considerable amount of new then using a sitemap can be fundamental to the success of your website.

What Google has to Say about Site Maps:
In general, there are two types of sitemaps. The first type of sitemap is a HTML page listing the pages of your site - often by section - and is meant to help users find the information they need.

XML Sitemaps - usually called Sitemaps, with a capital S - are a way for you to give Google information about your site. This is the type of Sitemap we'll be discussing in this article.

In its simplest terms, a Sitemap is a list of the pages on your website. Creating and submitting a Sitemap helps make sure that Google knows about all the pages on your site, including URLs that may not be discoverable by Google's normal crawling process.

Sitemaps are particularly helpful if:
• Your site has dynamic content.
• Your site has pages that aren't easily discovered by Googlebot during the crawl process - for example, pages featuring rich AJAX or Flash.
• Your site is new and has few links to it. (Googlebot crawls the web by following links from one page to another, so if your site isn't well linked, it may be hard for us to discover it.)
• Your site has a large archive of content pages that are not well linked to each other, or are not linked at all.
You can also use a Sitemap to provide Google with additional information about your pages, including:
• How often the pages on your site change. For example, you might update your product page daily, but update your About Me page only once every few months.
• The date each page was last modified.
• The relative importance of pages on your site. For example, your home page might have a relative importance of 1.0, category pages have an importance of 0.8, and individual blog entries or product pages have an importance of 0.5. This priority only indicates the importance of a particular URL relative to other URLs on your site, and doesn't impact the ranking of your pages in search results. (Google)

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