Where is my sitemap?

Yes, having a sitemap is a good practice. A sitemap is a file (or a path) where all your website URLs will be listed to tell Google and other search engines about the structure of your site content.

Search engine web crawlers like Googlebot read this file to more intelligently crawl your site.

All Pixpa website has dynamic sitemap and is available at /sitemap.xml

If your website URL is https://upstart.pixpa.com, then your sitemap is available at https://upstart.pixpa.com/sitemap.xml

And if you have connected your custom domain (http://www.yourdomain.com), then your  sitemap is available at http://www.yourdomain.com/sitemap.xml

Note: Its not possible to upload an external sitemap as all Pixpa websites are dynamic. The site itself needs to generate a sitemap and keep updating it as you add or delete content.