What is an XML sitemap?

What it looks like

An XML sitemap is a file made for search engines, not for visitors. It usually lives at /sitemap.xml. A minimal one with two pages looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>https://www.example.com/</loc>
    <lastmod>2026-09-14</lastmod>
  </url>
  <url>
    <loc>https://www.example.com/repot-a-houseplant</loc>
    <lastmod>2026-08-02</lastmod>
  </url>
</urlset>

Each url block holds one address. The lastmod line is the date the page last changed. Most site builders create and update this file for you.

Why it matters

• It helps pages get found. Crawling starts with knowing that an address exists. A sitemap is useful for new pages and for pages with few links pointing to them.
• It is a list of suggestions, not a promise. Being in the sitemap does not guarantee indexing.
• It does not replace links. An internal link tells a search engine that the page exists and that it matters to you.
• It has limits. One file may list up to 50,000 addresses. Larger sites split the list into several files.
• Some fields are ignored. Google ignores priority and changefreq, so there is no point in tuning them.

How to check yours

1. Type your domain followed by /sitemap.xml into your browser. If nothing loads, look for a Sitemap line in your robots.txt file.
2. Skim the list. Are your important pages there?
3. Open a few of the addresses. Each should load directly, without a redirect or an error.
4. Submit the sitemap in Google Search Console under Sitemaps, and read the report for problems.

The lesson XML sitemaps: what to include and what to leave out goes through each choice.