If you have ever looked into technical SEO basics, you have likely come across advice to “submit your XML sitemap,” often without much explanation of what that actually means or why it matters. It is a small file with an outsized reputation, and understanding what it does, and does not do, clears up a lot of confusion about how search engines find and prioritize the pages on your site.
What Is an XML Sitemap?
An XML sitemap is a file that lists the URLs on your website that you want search engines to be aware of, along with some optional information about each one, such as when it was last updated. It is written in a structured format that search engines can read easily, and it is typically found at a URL like yoursite.com/sitemap.xml.
Think of it as a map you hand directly to a search engine, showing it the pages you consider important, rather than relying entirely on the search engine finding everything on its own by following links from page to page.
What Does an XML Sitemap Actually Do?
It is important to be precise here, since a common misconception is that a sitemap guarantees indexing. It does not. A sitemap is a strong signal and a helpful shortcut, not a command. What it actually does:
- Helps search engines discover pages faster, particularly new pages, or pages that are not well linked internally and might otherwise take longer to find
- Communicates which version of a URL you consider canonical, when used alongside proper canonical tags
- Provides metadata, such as the last modified date, which can help search engines understand which pages have recently changed and might be worth recrawling sooner
- Gives you visibility into indexing issues, since Google Search Console will report on sitemap submitted URLs versus what actually gets indexed, helping you spot problems
What it does not do is force a page into the index, override a “noindex” tag, or fix underlying content or quality issues that are the real reason a page is not ranking.
Does Every Website Need an XML Sitemap?
Technically, no. A small site with clean navigation and strong internal linking, where every page is easily reachable within a few clicks from the homepage, can be crawled effectively without one. That said, a sitemap is considered a best practice for nearly every site because it is low effort, carries essentially no downside, and provides real value the moment a site grows beyond a handful of pages, adds content that is not well linked internally, or wants faster discovery of newly published pages.
Sitemaps become genuinely important, rather than just a nice extra, for:
- Large sites with hundreds or thousands of pages
- New websites that do not yet have many external links pointing in, since search engines have fewer paths to discover their pages otherwise
- Sites with content that is not well interlinked, such as an e-commerce catalog with many product pages
- Sites that publish content frequently and want it discovered and crawled quickly
What Should and Should Not Be Included in a Sitemap?
A well built sitemap is not just a list of every URL your site technically has. It should reflect the pages you actually want search engines to index and prioritize.
Include:
- Canonical versions of your important pages, using the exact URL you want indexed
- Pages that are set to be indexed, meaning they do not have a “noindex” tag
- Pages that return a normal, successful response, not ones returning an error or redirecting elsewhere
Leave out:
- Pages marked “noindex,” since including them creates a contradictory signal
- Duplicate or parameterized versions of the same page, such as URLs with tracking parameters attached
- Pages that redirect elsewhere, since the sitemap should point directly to the final destination
- Low value pages like internal search result pages, thank you pages, or admin areas that offer no value to searchers
A sitemap full of low quality or duplicate URLs does not just fail to help. It can actively work against you, since a high proportion of low value or non-indexable URLs in a sitemap can lead search engines to trust the sitemap less overall.
How Do You Create an XML Sitemap?
The right approach depends heavily on what platform your site runs on.
If you use a content management system like WordPress: Most SEO plugins, including popular ones widely used across WordPress sites, generate and maintain an XML sitemap automatically, updating it as you publish or unpublish content. In most cases, you do not need to build one manually at all. You typically just need to confirm the plugin’s sitemap feature is enabled and locate the generated URL.
If you use an e-commerce platform: Most major platforms generate a sitemap automatically as part of their built-in SEO features, though it is worth confirming that out of stock or discontinued product pages are being handled the way you want, since these can otherwise clutter a sitemap unnecessarily.
If your site is custom built: You may need a sitemap generated through a script or a dedicated sitemap generation tool, particularly for very large sites where the sitemap needs to update dynamically as pages are added or removed. Standalone sitemap generator tools also exist and can crawl your site and produce a sitemap file, which works well for smaller, more static sites.
How Do You Submit a Sitemap to Search Engines?
Once your sitemap exists at a stable URL, submitting it is straightforward.
- In Google Search Console, go to the Sitemaps section, enter your sitemap’s URL, and submit it. Search Console will then show you how many URLs were discovered, how many were indexed, and flag any errors it encountered.
- In Bing Webmaster Tools, the process is similar: submit the sitemap URL directly through the Sitemaps section of the dashboard.
- Reference it in your robots.txt file, by adding a line like “Sitemap: https://yoursite.com/sitemap.xml” near the top of the file. This helps any crawler find your sitemap automatically, even ones you have not manually submitted it to.
What Should You Do If Your Sitemap Has Errors?
Search Console will flag specific problems within a submitted sitemap, and a few tend to show up most often.
- URLs blocked by robots.txt: this usually means a page is in the sitemap but also blocked from crawling elsewhere, which is a contradictory signal that should be resolved by either removing the block or removing the URL from the sitemap.
- URLs returning a 404 error: these are typically outdated entries pointing to pages that no longer exist, and they should be removed from the sitemap.
- URLs with a “noindex” tag: as mentioned earlier, these should not be in the sitemap at all, since a sitemap listing pages you are telling search engines not to index sends a mixed message.
- Redirected URLs: the sitemap should list the final destination URL directly, not a URL that redirects elsewhere before landing there.
Cleaning these up periodically keeps the sitemap functioning as a reliable, trustworthy signal rather than a source of noise.
How Often Should a Sitemap Be Updated?
For most sites using a content management system with automatic sitemap generation, this happens without any manual effort, updating in real time as pages are published, updated, or removed. For sites with a manually maintained or script generated sitemap, it is worth setting a regular schedule to regenerate it, particularly after any significant content additions, removals, or a site restructuring, since an outdated sitemap can quietly start pointing to pages that no longer exist or missing newly published ones.
Do Large Sites Need Multiple Sitemaps?
Yes, in many cases. There is a technical limit on how many URLs a single sitemap file can contain, and very large sites often split their sitemaps into multiple files, organized by content type, such as separate sitemaps for blog posts, product pages, and category pages. These individual sitemaps are then referenced inside a sitemap index file, which acts as a directory pointing to each of the individual sitemaps. This approach also makes it easier to diagnose issues, since you can see indexing performance broken down by content type rather than looking at one enormous, undifferentiated list.
A Realistic Take on XML Sitemaps
It is worth being honest that a sitemap is a supporting tool, not a solution to deeper problems. If your pages are not getting indexed, a sitemap alone will not fix that if the real cause is thin content, a “noindex” tag, poor internal linking, or a lack of any real authority behind the page. What a sitemap does well is remove friction and speed up discovery for content that is genuinely worth indexing in the first place. It is a small, low effort piece of technical SEO that is worth getting right, but it is not a substitute for solving the more fundamental issues if those exist elsewhere on the site.
What Is the Difference Between an XML Sitemap and an HTML Sitemap?
These two are easy to confuse, since they share a name, but they serve different audiences. An XML sitemap is built for search engines and is not meant to be viewed by visitors directly. An HTML sitemap, by contrast, is a regular webpage, usually linked in the footer, that lists out a site’s main pages in a human readable format, primarily to help real visitors navigate a large site. Some sites benefit from having both, since an HTML sitemap can also serve as an additional internal linking path that helps search engines discover pages, while the XML sitemap remains the primary technical signal.
How Do You Know If Your Sitemap Is Actually Helping?
The clearest signal comes from comparing the number of URLs submitted in your sitemap against the number Google reports as actually indexed, visible directly in the Sitemaps section of Search Console. A large, persistent gap between submitted and indexed URLs is worth investigating, since it often points to a deeper issue, such as thin content, duplicate pages, or crawl budget being spent elsewhere, rather than a sitemap problem itself. A sitemap with a high indexed rate is a reasonable sign that your site’s important pages are healthy and being recognized the way you intend.
Frequently Asked Questions About XML Sitemaps
Can a sitemap hurt my SEO? Directly, no, but an unmaintained sitemap full of broken links, duplicate URLs, or pages you do not actually want indexed can waste crawler attention and create confusing signals, which is an indirect cost worth avoiding.
Do I need to resubmit my sitemap every time I publish new content? No, in most cases. Once a sitemap is submitted and referenced in your robots.txt file, search engines will periodically recheck it on their own. Automatically generated sitemaps from a content management system update in real time, so there is usually no need to manually resubmit unless you want to prompt a faster recrawl after a significant change.
Should video or image sitemaps be created separately? For sites with a large amount of video or image content that is important for search visibility, dedicated video or image sitemaps, which use slightly different formats to include extra metadata, can help those specific assets get discovered and understood more effectively than relying on a standard page sitemap alone.
What happens if I remove a page but forget to remove it from the sitemap? The URL will typically start returning a 404 error, and Search Console will usually flag this within the sitemap report. It is not an emergency, but it is worth cleaning up periodically so the sitemap continues to reflect the site accurately.
Conclusion
An XML sitemap is a simple, low maintenance file that helps search engines find and prioritize the pages you actually want indexed, and it becomes genuinely valuable the moment a site grows beyond a small handful of well linked pages. Keep it clean, limited to canonical, indexable URLs, submit it properly through tools like Google Search Console, and review it periodically for errors. It will not fix deeper content or quality problems on its own, but as a piece of technical SEO hygiene, it is one of the easiest wins available, and there is little reason for any growing website to go without one.