What are the important meta tags I must put in my website? [closed]

Answer 1

I realize this question is old, but it's still a top google hit, so I thought I would give an updated answer that includes popular social media sites.

I generally have four groups of meta info:

Regular Meta Info - used by search engines and browsers

Facebook Meta Info - used by Facebook when someone shares your url

Google+ Meta Info - used by Google+ when someone shares your url

Note: you don't really need these, Google+ will fall back to the Open Graph tags that Facebook uses.

Twitter Meta Info - used by Twitter when someone shares your url