30 Second Article on Tangled Websites
Many web development companies will just leave the old stuff on your site, and not bother to clean it up.
This photo of cable services being added, disconnected, added, … reminded me of the importance of cleaning up old pages. It affects search results, and your clients will reach old pages and get outdated information.
Old photos of long gone employees, pdf documents with dated pricing, invalid sales and specials ... if a search engine could find them once, they can be surfaced if they still exist in your website files - even if your website no longer references them.