Canonical URL: the preferred address of a page when several URLs show the same content.
Noindex: an instruction asking search engines not to list a page.
JSON-LD: the format used to add structured data to a page.
Canonical URL: the preferred address of a page when several URLs show the same content.
Noindex: an instruction asking search engines not to list a page.
JSON-LD: the format used to add structured data to a page.