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What’s backlink? Simply, Getting a backlink is getting a link from a website points to our website.
What’s SEO? “Search Engine Optimization” the process of ranking websites in search engines (Google, Bing, Yahoo, ...).
Backlinks are important. It’s the big part of “Off-Site SEO”, the number of backlinks is often considered as one of the most important factors for determining the website’s ranking on the search engines such as Google, Yahoo, Bing, … etc.
PS. Creating backlinks is called link building process. Link building process is the process of getting hyperlinks from other websites to our website.