In the admin area click web pages then click on the name of the page. Then click the SEO Settings tab.Or if you’re viewing the page click the edit icon on the left side of the screen. In the popup click SEO settings.
Document Title
This is important. This will be the title used at the top of your search result in a search engine. Think of this as the title of your ad on the search engine. It’s best to keep titles under 60 characters so they don’t get cut off in the search results.
Meta Description
This is important. This is the description that shows below the title of your search result in a search engine. You want the description between 50–160 characters.
Custom Redirect URL
This can be used to redirect the page to a different link. So maybe you have created a new page with a different link. You can put the new link here and anyone who visits the old page will be automatically redirected to the new page.