: Do search engines penalise for multiple main menu markups? I have a website where the front-end developer has added 3 times the menu in the markup, e.g.: div.menu>home+about+news+contact us"

@Jessie594

There is not a SEO issue or a Google penalty for repeating the menu. Menu are links to your other pages, and generally they are used to improve navigation and user experience. Actually, many many sites may display more than one their menus in various locations on the same page.

However the way it has been developed in your site is not the ideal and can be considered excessive. As the menu is repeated 3 times in the same place, while 2 of the 3 remain hidden. Unless there were specific conditions that resulted in this implementation, there should be another more efficient way.

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@Jessie594

While this isn't an ideal practice Google is able to now detect the CSS used in a page to detect when elements are being hidden and when elements are visible as long as the robots.txt file isn't blocking access to the CSS and javascript files which control which version of the menus is visible. You shouldn't see any issues with SERP ranking.

Having said that however from a manageability standpoint this is far from ideal and if possible should be addressed so you have a single menu instantiation and you use javascript to define the styles and location based on your needs (IE: is the menu needed for above the fold display, scrolling display, or mobile display).

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