Customizing google plus url default comment

Question

Is it possible to add a comment by default when using google plus share link? The url is the following

https://plusone.google.com/_/+1/confirm?hl=en&url=URL_         


        

Answer 1

Just to warn you, this is not an officially supported part of the Google+ platform. I strongly recommend that you use the +1 button to share content to Google+.

That being said, there is no paramater that you can set to specify the message. The closest you can get to this is to use schema.org, open graph or HTML meta elements to specify the description of your target URL just like the +Snippet for the +1 button.