How do backlinks contribute to domain authority and page authority?

Backlinks are an important factor in determining domain authority and page authority. Here's how:

1. Domain authority: Domain authority is a metric developed by Moz that measures the strength and credibility of a website's overall domain. Backlinks from high-authority websites can help to improve a website's domain authority, as they indicate that the website is trustworthy and relevant. The more high-quality backlinks a website has, the higher its domain authority is likely to be.
2. Page authority: Page authority is a metric developed by Moz that measures the strength and credibility of an individual webpage. Backlinks from high-authority websites can help to improve a webpage's page authority, as they indicate that the webpage is trustworthy and relevant. The more high-quality backlinks a webpage has, the higher its page authority is likely to be.
3. Link equity: Backlinks pass link equity, which is a measure of the value and authority that a backlink transfers to the linked page. High-quality backlinks from high-authority websites can pass more link equity, which can help to improve the search engine rankings of the linked page.
4. Relevance: Backlinks from relevant websites can help to improve a website's domain authority and page authority, as they indicate that the website is trustworthy and relevant to the linked page's topic.
5. Anchor text: The anchor text of a backlink can also impact a website's domain authority and page authority. Relevant and descriptive anchor text can help to improve the search engine rankings of the linked page for specific keywords.

Overall, backlinks are an important factor in determining domain authority and page authority. By building high-quality, relevant backlinks from authoritative websites, website owners can improve their domain authority and page authority, which can help to improve their search engine rankings and increase their online visibility.