A backlink is a link that leads from another website to yours. They are sometimes also called inbound links. Links from other websites to yours are very important for your position in search engines.
Of course, quality matters, as does quantity. A quality link serves as a reference and is treated as one. The more quality links you have, the better search engines will rate you and the higher you will rank in search results. The goal of every website owner is therefore to obtain as many quality backlinks as possible, which for commercial companies also brings increased turnover and profit.
A quality link is one that comes from an article that has existed for a long time; it also depends on the text surrounding the link and, last but not least, on the value of the page it links from. A very important aspect of creating backlinks is learning to use so-called anchor text correctly.
You can get quality links by creating quality content that other websites will want to spread and will place backlinks to on their own. Another option is buying backlinks (PPC), exchanging them, or registering in directories.
Backlinks belong to the group of so-called off-page factors, which, from the point of view of search engine optimization (SEO), are among the most important factors in promoting a website.
The field that deals with building backlinks is called link building.