I am trying to find a lot on Google how to add Structured data to site and from all the tutorials I got an impression that there is RDF module in core which was supposed to do that work like providing structured data to search engines (Google).
That module is in core and already installed on site, still Google Search Console saying,
We do not detect any structured data on your site.
Am I missing something? If RDF does not provide structured data to search engines, what is the right method to add structured data to a site? Please, correct me if I am wrong about RDF.