Link Building is a technique or process of exchanging text links or banner links between websites means links to your website from others’ websites and other websites links from your website. Links help a website crawl, index, and boost its SERPs. There are 3 types of link-building:-

1. One-way Link Building (Non-reciprocal)
2. Two-way Link Building (Reciprocal from the Same domain)
3. Three-Way Link Building (Reciprocal Link from 3rd Party can be accepted)