Can I have the same meta descriptions on different web pages?
JOHN MEULLER (Webmaster Analyst from Google):
Sure, you can do that. From our point of view, what will possibly happen is that our algorithms will recognize that this is the same meta description on a bunch of different pages, and maybe they’ll say, well, maybe this is not such a great meta description. And for this snippet, then, use something more from the text itself within the web page. But If you want to use the same meta description for a bunch of different pages, especially if these are similar pages, then maybe that makes sense. That’s something you can definitely do. There is certainly no penalty for doing that. It’s just a matter of which snippet is actually shown in the search results.