Cleaning up outdated Google search results comes down to whether you own the...

https://dibz.me/blog/whats-the-safest-way-to-remove-a-page-without-causing-a-bigger-seo-mess-1073

Cleaning up outdated Google search results comes down to whether you own the site. If you control the page, delete the content and ensure it returns a proper 404 status—avoiding "soft 404s" that trick Google into keeping it live