Adding a parameter to the URL / URL Stracture

[geofil]

Dear Community,

I would like to ask a question regarding url structure. We are struggling with shorting urls and we thought to add a "parameter" to the url. Example: domain.com/product**/a/** or domain.com**/a/**product/

Current url structure: domain.com/product/

So we go after and short url contains "/a/" and find the category we want.

Is this going to harm our SEO strategies?

Any idea is welcome.

[Roman-Delcarmen]

According to Moz the Optimal Format for a URL
http://www.example.com/category-keyword/subcategory-keyword/primary-keyword.html

Source
URLs - SEO Best Practices

This is another good source
15 SEO Best Practices for Structuring URLs by Rand Fishkin

In your case, if this new structure will help to improve the user experience and visibility of your site, then you are in the right way.