Objective: Be careful with this one. If you skip it, your website will load in the same window or tab in the visitor's browser when they click on a link back from another page. Many website owners don't want visitors to navigate to another website and would rather have their page load in a new tab.
Including a target="_blank" attribute in your snippet will make website owners happier to link to you, and it won't hurt your bounce rate or rankings.
rel: We all know about the rel="nofollow" attribute from the endless discussions in
This attribute reduces the chances of a malicious script on the linked page infiltrating your site ebay database and helps protect your website and visitors from malicious threats.