Linkchecker Highlight

The Linkchecker Highlight module will highlight links determined to be broken by the Linkchecker module so that broken links can be easily found in large blocks of text.

Color codes:

Default: White on gray
-110 (Connection timeout): White on gray
0 (Server not found): White on red
301 (Moved): White on blue
403 (Forbidden): Red on black
404 (Page not found): White on red

Highlight colors can be customized simply by adding classes to your theme's CSS files, like so:

.broken-link-0 {
  color: black;
  background: orange;
}

You can see how highlighted links will look by going to admin/help/linkchecker_highlight

Pending a response from the module maintainter, this module is planned to be integrated into the Linkchecker module. See http://drupal.org/node/1802556