There are different ways of showing your site content on the Internet. Many site applications show pages in a format similar to this:
Such links are bad for the SEO of your website. The search engine will consider both
as one page, even though those URLs display different content. This will generate errors with duplicated meta content, duplicated titles and more.
This is why you should set up your application to use Search Engine Friendly (SEF) URLs. Below, you can see two examples of SEF URLs:
Such links will be “crawled” by the search bots correctly and indexed in the Search Engine Result Pages (SERP).
If you want to rank high in SERPs, definitely set your links to be Search Engine Friendly.
Another benefit you get from using SEF links is that your visitors will remember the links to different parts of your website more easily. As for usability, having SEF URLs is a must.