A sitemap is a list of all of the live URLs which exist on a site and is used to inform search engine crawlers of the most important pages and therefore which ones should be crawled and indexed. There are several things to consider when creating sitemaps, as well as understanding how search engines view them. We cover a range of these topics within our SEO Office Hours Notes below, along with best practice recommendations and Google’s advice on sitemaps.

Mobile Sitemaps Are Not for Smartphone Pages

November 21, 2014 Source

Mobile sitemaps are for feature phone pages only, not smartphone compatible pages. If you have smartphone URLs which are different to the desktop URLs, use a normal XML sitemap with rel=alternate.

Change Frequency and Priority in Sitemaps Are Ignored

October 10, 2014 Source

Change Frequency and Priority in XML Sitemaps are not used by web search, but the lastmod date is used.

Submit Sitemaps with Changed URLs

September 12, 2014 Source

If you change many URLs, you should submit a sitemap with the old URLs to Google which will help them pick up the redirects to the new URLs. Webmaster tools will report errors with the sitemap, because it only contains redirecting URLs, but this is fine.

Related Topics

Crawling Indexing Crawl Budget Crawl Errors Crawl Rate Disallow Directives in Robots.txt Last Modified Nofollow Noindex RSS Canonicalization Fetch and Render