URL slug is the part of a web address that comes after the domain name and serves as a unique identifier for a specific page. In affiliate marketing, messy and hard-to-read URLs are common. These complicated URLs can confuse visitors, cause more errors, and hurt your SEO performance. So in this comprehensive blog, we will show you 3 ways to optimize URL slug for affiliate marketing. We will also share some additional tips so that you can ensure the best results.