1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1
Serve in some of LinkedIn's URL.
Example: http://www.linkedin.com/groups/Angular-Developers-4896676?gid=4896676&goback=.npv_130180715_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_1_*1
this looks like an indicator of the page you came from, so in this case npv is a "profile view", there's also "nmp" which is found on links to profiles from the homepage, "gmr" which is found on a group page, and numerous others indicating all sorts of other pages.
the second part is the profile id, so in this case "130180715"
So we can determine that you got to the Angular Developers group from the profile "130180715".
So far then we've got:
`goback=.<originating page type>_<identifier for originating page>`
If you were to click a link on the Angular Developers group page, you might have the following in your url:
`goback=.gmr_4896676`
I'm not sure what the _1 bits are. Probably just providing non `null` values for this whole goback string