dead link; linkrot
Computing term for a hyperlink that no longer points to a valid page or resource.
このページにはリンク切れが多くて、情報が古い。
This page has many dead links, so the information is outdated.
There is a form to report broken links.
Compound of リンク (link) and 切れ (expiration/breakage), the noun form of 切れる. A straightforward modern computing term.