Which type of link is crucial for SEO to provide better indexing of a website?

Internal links are crucial for SEO as they help search engines crawl the website more effectively. These links connect different pages within the same website, establishing a clear structure and aiding in the distribution of page authority throughout the site. When search engines crawl a website, they depend on these internal links to discover new content and understand the relationship between different pages.

By using a comprehensive internal linking strategy, a website can improve its indexability, allowing search engines to find and rank all important pages more easily. Additionally, internal links can enhance user experience by providing navigation options that help visitors explore related content, thereby increasing engagement and potentially lowering bounce rates.

In contrast, external links are valuable for generating backlinks and establishing authority but are not as critical for site indexing as internal links. Broken links negatively impact user experience and can harm SEO efforts. Redirect links, while useful in guiding users from one URL to another, do not directly contribute to the structural indexing of a website.