Question 1

What is a sitemap.xml and why do I need one?

Accepted Answer

sitemap.xml is a file at the root of your site that lists your pages so search engines and AI crawlers can discover and index them efficiently. It helps Google, Bing (which feeds ChatGPT Search), and Perplexity find every page rather than relying on link-following alone.

Question 2

Where do I put the sitemap and how do search engines find it?

Accepted Answer

Host it at https://yourdomain.com/sitemap.xml and add a line to your robots.txt: Sitemap: https://yourdomain.com/sitemap.xml. You can also submit it in Google Search Console and Bing Webmaster Tools.

Question 3

What do changefreq and priority do?

Accepted Answer

They are optional hints. changefreq suggests how often a page changes (daily, weekly, monthly); priority (0.0-1.0) suggests relative importance. Modern engines treat them loosely, but a clean lastmod date is genuinely useful.

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