Internal links are not backlinks. The distinction matters because Google treats them as separate ranking signals with different weights and purposes. Backlinks are incoming links from other websites. They signal trust, authority, and relevance from external sources. A backlink from a CBC article or a .edu domain carries algorithmic weight because it represents an independent vote of confidence. Google's PageRank algorithm was built on this concept, and domain authority still depends heavily on the quality and quantity of external links. Internal links connect pages on your own domain. They distribute PageRank within your site, establish information hierarchy, and help Google understand topic relationships. When you link from your homepage to a service page, you're not creating a backlink, you're directing authority you already have and telling crawlers which pages matter most. The confusion often comes from link equity flow. Both link types pass PageRank, but the source makes all the difference. An internal link from your own high-authority page might pass more equity than a backlink from a spam directory, but it still doesn't replace the need for external validation. You can't rank a competitive keyword in Ottawa's legal or real estate markets with internal links alone. At Ottawa SEO, we see clients over-optimize internal linking while ignoring link building. That's backward. Internal links are table stakes for crawlability and user experience. We structure them to guide visitors and concentrate authority on money pages. But ranking power comes from external domains linking to you. Practical breakdown: - Internal links: You control them, free to create, mainly for architecture and PageRank distribution - Backlinks: Earned or built, costly in time or money, primary driver of domain authority - Both matter: Internal linking maximizes what your backlinks give you If you're tracking links in Search Console or Ahrefs, external links appear under backlinks or referring domains. Internal links show up in site audit tools as part of your crawl structure. They're measured differently because they work differently.