Not every domain that once ranked well will regain that standing after changing hands, and understanding why sets realistic expectations for a purchase.
A Significant Gap in Active Use Can Cause Real Decay
Extended periods where a domain sits dormant or inactive can lead to a genuine decline in how search engines regard it, regardless of its history.
A Change in Content Focus Resets Much of the Relevance Signal
Building genuinely different content than what originally earned a domain's authority means starting much of that relevance-building over again.
Some Historical Value Was Likely Never as Strong as It Appeared
A domain's apparent past success, based on incomplete third-party data, doesn't always reflect the genuine strength it's assumed to have had.
Next step: Use the Wayback Expired Domains to set realistic expectations by reviewing exactly what a domain's history actually shows.