In laymen’s terms, links are “votes” for your website, and the more you have, the more important you seem to search engines. But unfortunately it’s not as simple as getting as many links from random websites across the internet – this was a common tactic in the 1990s which doesn’t work anymore. Search engines have very sophisticated algorithms these days to differentiate between a legitimate link, a high or low value link, or a spammy link.
To improve search engine rankings, it is important to links from high value and legitimate websites that are relevant to your industry. Legitimacy and relevancy have many different faces and are determined by factors such as domain authority, trust rank and if the content topic is relevant to your industry.
High quality links can be sourced from article websites, government websites, industry specific community sites, etc. Another opportunity is to get links from local organisations with high domain authority.