Exact link of vertical tabs
Just add the ID of the pane (fieldset) to the URL as a fragment, e.g.

http://example.com/node/[ID]/edit#edit-metatags


Assuming metatag is installed, that code will open the metatags tab directly on page load. 

An example for core might be:

http://example.com/node/[ID]/edit#edit-options


For the "Publishing options" tab.