The first thing that you need to know about the Meta Description Tagis that it no longer actually contributes to SEO or your Search Engine Results Page (SERP) rankings.
So why the title?
Because the meta description tag is still part of most SEO services, plug-ins, software packages, and discussions.
The Meta Description Tag is a statement describing the content of the webpage. It is not visible to website viewers (unless they know where to look), but is visible to search engines.
It makes up the content that usually appears on lines 2 & 3 (below the title) of your listing on the SERP. It is your first opportunity to “sell” to your potential visitor – definitely worth putting some time into.