Search Site Pages and Metadata

Hi all,

I have a managed property called "Tags" that's mapped to the Enterprise Metadata keyword column for documents across hub and associated sites. I linked tags to the crawled property.

So a user could search say tags:policies and it would return any document that has a keyword called policies. However if I enable keywords for site pages and add polices, the search won't return these pages. Is this the keywords for site pages a different crawled property?