I am trying to triple check this - I have a client who has all of their H1 tags as hidden.  As far as I am concerned, anything hidden is not a good thing for SEO. I am debating with their online store provider that this is not good practice.  Everything I am reading says it is not good practice.  They are saying it is for "My SEO experience would suggest otherwise.  In addition, the H1 adds semantic value for users with disabilities to help give them context with what the content of the page is." Did I miss something? They are a large brand and have not been penalized.  This has been happening for 8 months.