In 2021, Google’s Gary Illyes said on Twitter that redirect signals consolidate permanently to the new location after one year. If the redirect is removed and the original page is restored, the original page has to build brand-new signals on its own. It’s also been understood that if the original page is restored that the signals will build back up for that page. You can see that the drop already happened on January 24, but I didn’t remove redirects until January 30. ToolsThere’s also a massive impact on various tools like Ahrefs if the redirects do permanently pass value.