Link building (the process of acquiring links to a website) is the activity most associated with off-site SEO.
Link building (the process of acquiring links to a website) is the activity most associated with off-site SEO. There can be great benefits (e.g., rankings, traffic) from getting a diverse number of links pointing at your website from relevant, authoritative, trusted websites. Link quality beats link quantity – and a large quantity of quality links is the goal.