I have the schema with this:<sitemapindex xmlns=https://www.sitemaps.org/schemas/sitemap/0.9>Is it correct or should be:<sitemapindex xmlns=http://www.sitemaps.org/schemas/sitemap/0.9>if all my web pages are on HTTPS?
Is incorrect to have the HTTPS version of the sitemaps.org URL in the xmlns sitemap schema?
https;xml sitemap;xml;namespace
You can validate your sitemap on https://www.google.com/webmasters/tools. It will give an error when you use https to refer to the schema.I have also seen other sitemap validators that refuse to validate the https version of the namespace, so using http might be the only correct option, even when your site only uses https.