A sitemap is a file that lists the pages of a website, used to help search engines discover and index content. The most common form is an XML sitemap at /sitemap.xml, which is a machine-readable file specifically designed for search engine crawlers. An HTML sitemap is a human-readable page listing the site’s content, less common today but still used on some larger sites.

XML sitemap structure

An XML sitemap follows a defined schema (sitemaps.org). A minimal example:

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>https://example.com/</loc>
    <lastmod>2026-04-23</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>
  <url>
    <loc>https://example.com/about</loc>
    <lastmod>2026-03-10</lastmod>
  </url>
</urlset>

Each <url> entry can include:

<loc>, the page URL (required)
<lastmod>, last modification date (recommended; search engines actually use this)
<changefreq>, how often the page changes (largely ignored by modern crawlers)
<priority>, relative importance (largely ignored by modern crawlers)

What sitemaps do

Sitemaps help search engines:

Discover pages they might not find through normal crawling
Understand site structure at a glance
Prioritize crawling of recently updated pages (via <lastmod>)
Index large sites more efficiently
Cover orphan pages (pages not linked from elsewhere)

For small sites with good internal linking, a sitemap may add little value beyond what crawling alone provides. For larger or more complex sites, sitemaps significantly improve indexation.

Sitemap variants

Variant	Purpose
Standard XML sitemap	Lists pages
Image sitemap	Lists images for image search indexing
Video sitemap	Lists videos with metadata
News sitemap	For Google News submissions
Sitemap index	Master file listing multiple individual sitemaps; useful for sites with more than 50,000 URLs

A sitemap index allows breaking large sites into multiple sitemaps:

<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <sitemap>
    <loc>https://example.com/sitemap-pages.xml</loc>
  </sitemap>
  <sitemap>
    <loc>https://example.com/sitemap-blog.xml</loc>
  </sitemap>
</sitemapindex>

Where to put the sitemap

Conventional location: https://example.com/sitemap.xml (the root of the site). Alternative locations work as well; the location is referenced from robots.txt or submitted directly to search consoles.

How sitemaps are submitted to search engines

Several ways:

Reference in robots.txt. Add Sitemap: https://example.com/sitemap.xml to robots.txt
Google Search Console. Submit the sitemap URL in the Sitemaps section
Bing Webmaster Tools. Submit through the Sitemaps section
Yandex Webmaster. Similar process for the Russian search engine
Ping (legacy). Some search engines historically accepted ping URLs to notify of sitemap updates; this is largely deprecated

After submission, search engines fetch the sitemap on a schedule (often daily for active sites).

Sitemap limits

Maximum 50,000 URLs per sitemap file
Maximum 50 MB uncompressed file size
For larger sites, use sitemap indexes to combine multiple sitemaps

Generating sitemaps

Most modern web platforms generate sitemaps automatically:

WordPress. Generates a sitemap by default since version 5.5; SEO plugins (Yoast, Rank Math) override with their own
Static site generators. Astro, Hugo, Eleventy, Next.js, Gatsby, etc. include sitemap generation as plugins or built-in features
Hosted CMS. Squarespace, Wix, Webflow, Shopify all generate sitemaps automatically
Custom sites. Generated by build scripts or libraries

Manual sitemap creation is rare; automation is standard.

What to include

All canonical, indexable URLs of the site
Pages that should appear in search results

What to exclude:

Pages with noindex meta tags
Duplicate or near-duplicate pages
Admin, login, or internal pages
URL parameter variations (filtered, sorted, paginated versions)
Pages requiring authentication

Sitemap and SEO

Sitemaps assist indexing but do not guarantee ranking improvements. They are a discovery mechanism, not a ranking factor. The pages must still earn rankings through content quality, site authority, and other signals.

For new sites, well-structured sitemaps can speed up initial indexing. For established sites, the impact is usually smaller.

Common misconceptions

“Submitting a sitemap guarantees indexing.” Search engines may still choose not to index pages they consider low-quality or duplicate.
“Higher priority values improve rankings.” The <priority> attribute is largely ignored by modern crawlers.
“Every page needs to be in the sitemap to rank.” Pages can rank without being in the sitemap if they are discovered through links.
“Sitemaps replace internal linking.” They complement linking, not replace it; well-linked pages are crawled more frequently and treated as more important.