Welcome to the Q&A Forum

Use a cannonical tag. Its the best option if you want to keep both the pages or if you want to keep just one page 301 redirect the page which you don't want to keep to the page you want to keep

Having a canonical link pointing to that same url as in the address bar has no affect as far as search engines are concern, the reason moz.com gives for doing this is that if some one scrapes your site, the canonical will point back to the original. The whole idea of canonical tags and 301's is to do with requests, you want the all requests showing the same content to appear the same page to the search engine. With normal pages a slash means a different request that without, and to fix it you need to create a 301 that requests again to the correct url. in the process you have lost a bit of link juice. but when requesting the home page with or without the "/", the request is the same. there is no need to fix it. press F12 in your browser and test it yourself using the network tab, you can see that entering the url with or without the "/" on the homepage results in the same request. [image: lN1ydf7LdH8kAP8H36DeEHbsCJwAAAAASUVORK5CYII=]