Checking links on a website

On my website, I link to external content. I need someone to check all the links, and report any that are dead. The site is http://www.infinityyachts.com. The task is 1. Choose Browse Yachts, then choose 1 destination. Note the URL of that page. 2. Click each yacht on that page, which launches a link. 3. Provide each page's url, and the Yacht Name of any that are dead links from that page. Basically, it's checking all the yachts on the site. This is a regular, ongoing need, once a month.