Page should not have more than one banner landmark
landmarks/no-duplicate-banner · Best practice
Page should not have more than one banner landmark.
The banner landmark (typically <header>) identifies site-oriented content like logos and search. Only one top-level banner is allowed per page. If you need multiple headers, nest them inside sectioning elements (article, section, aside) where they become scoped headers rather than page-level banners.
Scan a page or repo for issues like this · All rules
Introduced in @accesslint/core v0.8.0