A broken link or dead link is a link on a web page that no longer works because the website is encountering one or more of the below reasons.

  1. An improper URL entered for the link by the web site owner.
  2. The destination web site removed the linked web page (causing what is known as a 404 error)
  3. The destination web site permanently moved or no longer exists
    4.The user has software or is behind a firewall that blocks access to the destination web site.
  4. The web site owner linked to a site that is behind a firewall that does not allow outside access (such as an Intranet site or a restricted access area on a web site).

Broken links can be problematic for users of a web site as they are unable to access the desired resource and may decide to make use of another site to find the necessary information or service.

Tip: Sometimes, if a link is broken you may still be able to read the content that was on the page copying the link and then trying to view that link on the Internet Archive.