We are occasionally asked whether FacetWP supports pretty URLs, e.g. /make/audi/model/a4/ instead of ?_make=audi&_model=a4.

FacetWP only supports GET-based permalinks. “Pretty” permalinks quickly lose their appeal as more selections are made. Plus it may actually be bad for SEO, since search engines would see a bunch of different URLs with the same content.

That’s probably why most large eCommerce sites stick with GET-based permalinks 🙂