The symptom
/sitemap_index.xml,/sitemap.xmland/wp-sitemap.xmlall return 404, or robots.txt has noSitemap:line.- New products take weeks to appear in Google.
Why it matters
Crawlers budget their visits. A sitemap tells them which product URLs exist and when they changed, so a 2,000-product catalogue gets fully crawled instead of the first few hundred links.
How to check it yourself
- Open
/sitemap_index.xml(Rank Math/Yoast),/sitemap.xml(AIOSEO) or/wp-sitemap.xml(WordPress core). - Search Console → Sitemaps: is one submitted and "Success"?
How to fix it
- Enable the sitemap in your SEO plugin (Rank Math → Sitemap Settings; Yoast → Settings → APIs → XML sitemaps) and include products and product categories; exclude tags if you have thousands.
- Add
Sitemap: https://yourstore.com/sitemap_index.xmlto robots.txt. - Submit it in Search Console and Bing Webmaster Tools.