SEO Glossary

Backlink

An inbound link from another domain.

A backlink is an inbound link from one website to another. When Site A links to Site B, that is a backlink for Site B. Google uses backlinks as a signal of authority and relevance: a page linked to by many trusted sites is more likely to rank well.

Not all backlinks are equal. Links from high-authority, topically relevant domains carry more weight. Links from low-quality or spammy sites carry less or can be actively harmful. The quality, relevance, and anchor text of backlinks collectively determine their ranking impact.

Building backlinks (link building) is one of the highest-ROI but most time-intensive aspects of SEO. Tactics include digital PR, guest posting, linkable asset creation, and competitor backlink prospecting.

Example

A link from Search Engine Journal to your SEO case study carries far more weight than 100 links from unrelated directory sites.

Apply this in practice

Definitions are step one.

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