Link building is the process of acquiring hyperlinks (backlinks) from other websites to your own. Very important for search engine optimisation (SEO) because search engines see those backlinks as trust and authority signals. A website that has many high-quality backlinks may score better on search engine results. Link-building tactics include writing articles and creating useful content that one would want to link to; guest blogging on relevant websites, participating in industry forums, and being there for others through relationship building with other website owners. Ethical or sustainable link-building practices will contribute quite a lot to success in the long-term.