Why your website pages need a sitemap

What is a sitemap?

A sitemap is a file on your website that lists every page you want search engines to know about. It sits on your server and acts like a map for Google and other search engines, telling them which pages exist on your site, when they were last updated, and how important they are relative to each other.

The most common format is an XML sitemap, which is a structured file that search engines can read automatically. It is not something your human visitors will ever see, but it is one of the most important technical SEO elements on your site.

Think of it this way: Google discovers new pages by following links. If a page on your site has no links pointing to it from anywhere else on your site or the web, Google may never find it. A sitemap solves this problem by giving Google a complete list of all your pages in one place.

Why your site needs one

Even if your site has solid internal linking, a sitemap provides several important benefits that you cannot get any other way.

It ensures all pages get discovered. If you have a page that is buried several clicks deep in your site structure, or a page that only gets linked from a blog post published years ago, Google might not find it through its normal crawling process. A sitemap ensures every page gets a chance to be indexed.

It helps with new content. When you publish a new page or blog post, adding it to your sitemap tells Google about it immediately, rather than waiting for Google to discover it through its regular crawling schedule. This can significantly speed up how quickly new content appears in search results.

It prioritises your important pages. A sitemap lets you indicate which pages on your site are most important. Your homepage, product pages, and key service pages can be marked as higher priority, which helps Google understand what matters most on your site.

It handles large sites. If your site has hundreds or thousands of pages, a sitemap is essential. Google has a crawl budget for each site, and a sitemap helps Google use that budget efficiently by pointing it directly to your most important content.

When a sitemap is especially important

For some types of websites, a sitemap is not just helpful but almost essential for proper search engine visibility.

• New websites. A brand new site has no backlinks and no crawl history. A sitemap gives Google a clear starting point for discovering your content.
• Sites with lots of media content. If your site has many images or videos, a specialised image or video sitemap helps those assets show up in Google Image and Video search results.
• Large ecommerce sites. Product pages, category pages, and variant pages can add up quickly. A sitemap ensures every product page has a chance to be indexed.
• Sites with orphaned pages. If you have pages that are not linked from your main navigation or other parts of your site, a sitemap is the only reliable way to get them discovered.

How to create a sitemap

The process for creating a sitemap depends on what platform your website is built on.

For CMS platforms like WordPress, Squarespace, or Wix, sitemaps are usually generated automatically. WordPress sites can use plugins like Yoast SEO or Rank Math, which create and update your sitemap automatically whenever you add or remove content. Squarespace and Wix generate sitemaps by default with no setup required.

For custom-built sites, you can use online sitemap generators that crawl your site and produce an XML file. Tools like XML-Sitemaps.com let you enter your site URL and download a generated sitemap for free. You then upload that file to the root directory of your website.

For modern frameworks like Next.js, there are packages that generate sitemaps automatically as part of your build process. For example, next-sitemap creates a sitemap file every time you build your site, which ensures it stays up to date without manual effort.

Once your sitemap is created, it should be placed at the root of your domain. Typically, a sitemap lives at a URL like yoursite.com/sitemap.xml.

How to submit your sitemap to Google

Creating a sitemap is only half the job. You also need to tell Google where to find it. The best way to do this is through Google Search Console.

Google Search Console is a free tool that lets you monitor your site's performance in Google search results. Once you have verified ownership of your site in Search Console, you can submit your sitemap URL under the Sitemaps section. Google will then fetch your sitemap and start using it to guide its crawling.

You can also reference your sitemap in your robots.txt file. Adding a line like this tells any search engine that reads your robots.txt where to find your sitemap:

Sitemap: https://yoursite.com/sitemap.xml

This is not a replacement for submitting through Search Console, but it is a good backup method that helps other search engines discover your sitemap as well.

Common sitemap mistakes to avoid

A sitemap is simple in concept, but there are a few common mistakes that reduce its effectiveness.

• Including pages you do not want indexed. Your sitemap should only include pages you want to appear in search results. Do not include admin pages, login pages, thank-you pages, or duplicate content.
• Leaving old pages in the sitemap. If you delete a page or redirect it to a new URL, remove it from your sitemap. Outdated sitemaps can cause Google to keep trying to crawl pages that no longer exist.
• Forgetting to update the sitemap. A sitemap that never gets updated is not much use. Make sure your sitemap is regenerated whenever you add or remove content from your site.
• Using too many priority tags. Marking every page as high priority defeats the purpose. Use priority sparingly to highlight your most important pages.

How to check if your sitemap is working

After submitting your sitemap to Google Search Console, you can check its status in the Sitemaps report. It will show you whether Google was able to read your sitemap, how many pages it found, and how many of those pages were actually indexed.

A significant gap between the number of pages in your sitemap and the number of pages indexed can indicate a problem. It might mean some of your pages have technical issues that prevent Google from indexing them, or it could mean Google does not consider those pages valuable enough to include in its search index.

You can also check your sitemap directly by visiting its URL in a browser. If it displays as a structured XML file listing all your pages, it is working correctly. If you get a 404 error or a blank page, something is wrong with the file or its location.