Use Wget to Detect Dead Links
Typical wget usage:
wget -r --spider -b -o /var/tmp/wget.log http://target.site.com/ -r - Recursive download --spider - Check downloaded content for new links, then discard -b - Run in the background -o /var/tmp/wget.log - Target log file http://target.site.com/ - Replace with the site you want to check
wget will create a log file detailing the status codes reported while downloading content from the target site - note that this method will catch links to nonexistent content from within the domain, however, off-site links will not be checked (which is why it pays to monitor your site’s error logs).
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