Dead link refers to the original normal, later failure of the link

Absrtact: Simply put, the dead link refers to the original normal, later failure of the link. When a dead link sends a request, the server returns a 404 error page. There are dead chains in these cases: Dynamic links become dead links under conditions that the database no longer supports. A file

Simply put, the dead link refers to a link that was normal and later invalidated. When a dead link sends a request, the server returns a 404 error page.

There are dead chains in these cases:

Dynamic links become dead links under conditions that the database no longer supports. A file or Web page has moved its location, causing the link to it to become a dead link. Web content updated and replaced with other links, the original link into a dead link. Site Server Setup error.

From the user's point of view, dead link and Error link performance is the same, so generally we do not need to distinguish between dead link and wrong link.

As SEO personnel or webmasters, we want to avoid the site of dead links, because the number of dead links can be judged by the authority of a site.