Off-Site SEO is a set of strategic measures that are implemented outside the boundaries of the website itself and are aimed at improving the ranking factors that search engines determine from the external web environment. This area focuses on building authority, trust and popularity.
Conceptually, off-site optimization is the management of the reputation and citation of the site on the Internet. Its main and most important element is Link Building – the process of acquiring quality inbound links (backlinks) from authoritative domains. Other elements include brand signals (brand mentions), social signals and reputation management (SERM).
Successful off-site optimization is a critical component of long-term SEO success. It is directly related to the domain authority metric and is what distinguishes a technically well-optimized site from an authoritative leader in the niche.