The Importance of a sitemap for SEO

When you go on a long drive, you need a map, or sat nav at least, to help you avoid ending up in the wrong place. Web users and, crucially, search engines are no different. A sitemap is a digital map that helps users and search engines easily navigate your website. This article will look at why a sitemap is important for SEO, some best practices for sitemaps for SEO as well as a few common mistakes to avoid. Let’s dive in!

SEO

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    There are different sitemaps in SEO, a bit like how you can select Google Maps, Apple Maps, Waze and so on, which all show the road in slightly different styles. They show information about the structure of a website, including its pages, videos and other files, to search engines and users. A sitemap helps search engines like Google find and understand the content on a website, and aids users in navigating it. Here are the main types:

    1. Standard XML sitemap
      This is a file in XML format that lists all the important URLs of a website, with additional information and the last modification date as well as the frequency of updates
    2. HTML sitemap
      This type of sitemap is designed for website users to provide a user-friendly way to navigate around the site and find the content being searched for.
    3. Video sitemap
      This helps search engines to understand and index video content on a website and thereby increase the visibility of videos in search results.
    4. Image sitemap
      An image sitemap helps search engines discover and index images on a website, and to improve their visibility in image search results.
    5. News sitemap
      The main purpose of a news sitemap is to help Google News discover and index content from news websites and make it appear in Google News results.

    The main sitemap for SEO is the XML one, so this article will be referring to this type for the remainder of the blog post.

    Sherbet Donkey logo representing SEO and website structure.

    Why a sitemap is important for SEO


    A sitemap is not just important for SEO, it’s essential to have a good technical SEO foundation. It acts as a road map for search engines, helping them discover, crawl and index all the most important pages on a website. This is crucial as it leads to better visibility and higher rankings in search results; ultimately, it drives more organic traffic. Here are some of the reasons a sitemap for SEO is so vital:

    • Improved crawlability
    • Enhanced indexing
    • Faster content discovery
    • Strategic insights
    • Better SEO performance
    • Support for large websites
    • Handling orphaned pages

    When you really need a sitemap for SEO


    While all sites will benefit from having a sitemap for SEO, some simply must have one. Websites that are large with a vast number of pages, or complex structures, really need a sitemap as search engine crawlers can find it hard to index everything.
    Sites that are very new and may lack sufficient external links to help search engines discover all their content will benefit from a sitemap to bridge the gap and ensure new pages are indexed. Likewise, if your website has limited internal linking, it can make it harder for crawlers to crawl and index it. The same is true for websites with lots of images, videos or other multimedia content, which can benefit from sitemaps, especially image and video ones, to ensure these elements are properly indexed.

    Diagram showing how a sitemap improves website SEO and indexing.


    Sitemap SEO best practices


    To optimise your sitemap XML SEO, it’s important to follow a few best practices to help search engines crawl and index your site efficiently. Tools like Yoast SEO, Google XML Sitemaps or Screaming Frog can help generate clean, accurate sitemap files which you can then submit to Google Search Console and Bing Webmaster Tools to ensure they’re recognised by search engines.
    Exclude URLs that return errors, redirects or are marked with ‘no index’ tags, as these can dilute crawl efficiency. For larger websites, organise your sitemap into logical sections, such as separate files for blog posts, product pages or landing pages. Most importantly, keep your sitemap updated. Where possible, automate updates so that any new or modified content is instantly reflected in the sitemap.


    Dos

    • Keep your sitemap clean and simple
    • Ensure all listed URLs are indexable and return 200 status codes
    • Group content by type
    • Use canonical URLs
    • Keep the sitemap file size under 50MB
    • Regularly monitor and update the file

    Don’ts

    • Avoid including duplicate, redirected or non-canonical URLs
    • Don’t add pages blocked by robots.txt or tagged as no index
    • Never submit an outdated sitemap – it can confuse crawlers
    • Don’t exceed 50,000 URLs in a single sitemap without breaking down into smaller chunks
    • Don’t neglect updating your sitemap for SEO

    Auditing your sitemap for SEO

    Regularly auditing your sitemap can help your site to rank better with search engines and gain more organic traffic. Here are some of the things to look for when checking your sitemap:

    • Look for 404 or 301 pages
    • Ensure URLs are indexable and relevant
    • Use Google Search Console’s ‘Coverage’ report to find problems
    • Keeping a clean, accurate sitemap file improves crawl and reduces indexing issues.

    Common mistakes to avoid

    Even a well-intentioned sitemap can hurt your SEO if not handled correctly. Some of the most common mistakes include:

    • Including non-canonical or duplicate URLs – leading to confusing indexing
    • Failing to update the sitemap after a site redesign
    • Including links to pages that are broken, redirected or disallowed via robots.txt
    • Avoid the trap of only submitting the homepage

    Keeping your sitemap for SEO clean, up to date and comprehensive helps search engines access your most valuable content, which will boost visibility and improve your chances of ranking well on Search Engine Results Pages (SERPs).

    Let the experts help


    If you’re still feeling out of your depth when it comes to managing your website’s sitemap for SEO, why not let the SEO experts at Sherbet Donkey help you out? With decades of combined expertise, our SEO experts know exactly how to help you manage your sitemap. We offer no-nonsense, tailored SEO strategies designed to put your business ahead of the competition.
    Contact our friendly team today to begin your journey up the rankings. Call us on 0800 197 9803 or drop us an email at hello@sherbetdonkey.co.uk and book your free SEO audit.

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