I am working on URL issues for a customer of mine and they have subcategory links ending in ?cat= and ?brand=. If I'm not mistaken, this is bad for SEO and not ideal for customer user experience.
I looked up the issue and found that it has to do with is_anchor set to 1/yes. I set all of the categories not to be anchors but this changed the way the left sidebar functioned, which is not what I was hoping for.
I have reindexed and cleared both caches but still have not had any success removing ?cat and ?brand from links.
I have web server rewrites enabled, there is no suffix for category and product pages and I have reindexed/flushed the cache multiple times.
The specific version of Magento is 18.104.22.168 running on PHP 5.6.38 and MySQL 5.5.
What else should I check?
[EDIT] Using the function here: https://www.blueclaw.co.uk/2013/08/12/fix-category-url-filter-in-magento-layered-navigation/, I was able to fix it for ?cat= but when I did it for ?brand, the links didn't quite look right. Presumably because they're brands, rather than categories. Is there a way to fix it for attributes or will I need an extension?