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You need to think about the end-user. Especially the mobile end-user I would personally get rid of the drop downs make part of your navigation go to its own page which then holds the URLs for that category. Drop downs are hit or miss. You don't want a menu that's too complex for the end-user there the person you have to think about. Google has relaxed its rules but thinks about large websites that have very simple menus. Look at Moz.com for instance. It is doing exactly what should be done for menus Put the important stuff at the beginning. Avoid drop down menus, avoid filling the entire side of every page with the same static links. You have to think of the way Google crawls a website and your crawl budget. Where Google is crawling the same URLs over and over again. Googlebot will stop crawling your site earlier if it has to crawl the same URLs or than once. ( unless you are a Fortune 500 brand) On your site using a mobile device you should place your navigation at the top of your page, not in the middle it's very confusing on mobile. See: http://www.responsinator.com/?url=www.familychristiandoors.com%2F You can use this tool to test mobile navigation http://www.responsinator.com/ Examples of very large sites with excellent navigation. https://pantheon.io/ http://www.ipgbook.com/ Example of well-made large menus https://www.admiretheweb.com/articles/20-responsive-mobile-navigation-inspiration/ https://www.usertesting.com/blog/2014/06/17/the-navigation-treasure-trove-37-menu-usability-resources/ https://www.orbitmedia.com/blog/website-navigation/ http://blog.hubspot.com/marketing/main-website-navigation-ht  Reference content http://www.hobo-web.co.uk/optimize-website-navigation/ http://searchengineland.com/mega-menus-seo-228827 https://blog.kissmetrics.com/common-website-navigation-mistakes/ https://moz.com/blog/301-redirection-rules-for-seo https://youtu.be/QHG6BkmzDEM https://moz.com/community/q/is-a-mega-menu-with-over-300-links-in-it-hurting-my-rankings ** Crawl budget reference** https://www.deepcrawl.com/knowledge/best-practice/optimize-crawl-budget-tips-examples/ https://moz.com/community/q/crawl-budget https://www.deepcrawl.com/case-studies/elephate-fixing-deep-indexation-issues/ I hope this helps, Tom rumble-mobile.jpg