Which link building strategy focuses on fixing broken resources?

Renovation link building, also known as broken link building, is a strategy where you find broken links on other websites and suggest your relevant content as a replacement. This benefits both parties: the website owner fixes a broken resource, improving their user experience and SEO, and you gain a valuable backlink. The Skyscraper Technique involves finding popular content, improving upon it, and then reaching out to sites linking to the original. Roundup link building focuses on getting included in curated lists of resources. Content curator link building involves pitching your content to individuals or sites that regularly curate and share resources. These strategies do not primarily focus on fixing broken resources.