I tweeted yesterday about initial results of data crunching on ARIA landmark role use on the top 10,000 web sites HTML home page code samples. What I found is very encouraging. ARIA role=banner usage As per the ARIA specification there should only be 1 role=banner per page. Of the 93 pages found to include the banner role: 90 pages had 1 instance (97%) 2 pages had 2 instances 1 page had 4 instance