Comment on 2016 WordPress SEO Tutorial Permalinks by Megan Singley.
There are on page SEO factors that can pass you a little SEO juice and optimizing your URL structure for better SEO is one of them. What I am going to talk about here is to pass on some instructions on what factors that you need to focus on while optimizing your url.
Try to use static URLs over your site rather than dynamic and script driven URLs that keep changing over a period time, reason is simple when you have dynamic URLs in your website, the URL that will be indexed by the search engines may differ from the prefered url. That way you cannot effectively build links back to your site and also there is chance that search bots may find that your URL is keep changing and they might well in fact not index your URL at all. If you do have this problem set a prefered canonical URL.
Keep your URL precise and one that gives you an idea what information that the URL may hold. Don’t use keywords in the url for a page that doesn’t really relate to the keywords used in the URL.
Also you need to use keywords, but as mentioned before use your keywords correctly instead of spamming them in your URL, when you use the right keywords they have influence over your rankings.
Use hyphens in the url to separate the terms rather than any other separators or no separators at all, next best to hyphens is an underscore.
Try to keep your url structure as simple as possible, you can avoid the usage of words like “of, and, if” etc.. in your URLs and make it look more cleaner for search engines and also users.