The Meta Title is the main title of the page and it appears in the Google results (SERP) when a search is made.
Generate - Creates meta titles only for the items, which do not have them.
Start Fresh - Removes all current meta titles and creates new ones.
The Meta Title of a web page is meant to be an accurate and concise description of a page's content. Below you can see how the Meta Title looks in the browser:
TThe Meta Description is an HTML attribute that briefly describes the content of web pages. They are used on search results (SERPs) to display snippets for a given page.
The importance of Meta Descriptions for your ranking is secondary to Meta Titles. However, they display valuable information for users to see before they open a page.
Generate - Creates meta descriptions only for the items, which do not have them.
Start Fresh - Removes all current meta descriptions and creates new ones.
Here you can see an example of the meta description tag in the SERP:
The Meta Keyword are an HTML attribute that are used to specify a set of keywords relevant to a given page.
Although Meta Keywords are no longer an important factor for Google, they have a minor contribution to ranking in other search engines like Bing and Yahoo!
Generate - Creates meta keywords only for the items, which do not have them.
Start Fresh - Removes all current meta keywords and creates new ones.