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XML Sitemap SEO Guide: Complete Guide for 2026

Learn how XML sitemaps work, what URLs to include, sitemap indexes, common mistakes and sitemap SEO best practices.

Published August 2026
Updated August 2026
10 min read
Chapter 7

XML Sitemap: Help Search Engines Discover Important URLs

An XML sitemap is a file that provides search engines with information about URLs that are important on your website. It can help search engines discover new or updated pages, particularly on large websites or sites with complex structures.

A sitemap does not guarantee that a URL will be crawled or indexed. Think of it as a discovery signal rather than a command to search engines.

What Should Be in an XML Sitemap?

Focus on URLs that are canonical, valuable and intended to be discoverable in search. Avoid treating the sitemap as a list of every URL your website can generate.

Where Is the Sitemap Located?

A common sitemap location is:

https://example.com/sitemap.xml

Some CMS platforms generate sitemaps automatically and may use a sitemap index containing multiple sitemap files.

Basic XML Sitemap Example

<?xml version="1.0" encoding="UTF-8"?>

<urlset
    xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
>
    <url>
        <loc>https://example.com/</loc>
    </url>

    <url>
        <loc>https://example.com/technical-seo-guide</loc>
    </url>

    <url>
        <loc>https://example.com/blog/ai-seo-guide</loc>
    </url>
</urlset>

What Makes a Good Sitemap?

Good PracticePotential Problem
Include important canonical URLsInclude URLs that redirect elsewhere
Keep sitemap URLs accessibleInclude URLs blocked from crawling
Keep sitemap data currentLeave removed URLs indefinitely
Use valid XMLBroken or malformed XML
Use sitemap indexes for large sites when appropriatePut an unnecessarily large number of URLs into one file

Sitemap Types

URL Sitemap

The standard sitemap format for communicating important website URLs.

Sitemap Index

A file that references multiple sitemap files, useful for larger websites.

Image Sitemap

Can provide additional information about images when an image sitemap is appropriate.

Video Sitemap

Can provide structured information about video content.

XML Sitemap Checklist

Sitemap is accessible
Sitemap contains valid XML
Important canonical URLs are included
Redirecting URLs are excluded
Broken URLs are excluded
No unnecessary duplicate URLs
Sitemap reflects the current website structure
Sitemap is submitted through the appropriate search engine tools

Sitemap and Robots.txt

A sitemap and robots.txt serve different purposes. The sitemap helps communicate important URLs, while robots.txt provides crawler access instructions for URL paths.

Sitemap

Helps search engines discover important URLs.

Robots.txt

Provides crawler access instructions for URL patterns.

💡

SEOHACK Tip

After launching a new website, redesigning your information architecture or changing your CMS, verify that the generated sitemap still contains the correct canonical URLs and that important pages have not disappeared from the sitemap.

Related Technical SEO Guides

Continue learning with these related Technical SEO resources.

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