I don’t have answer for this. Maybe to see if the user is still using Linkedin? Lots of unread notifications suggests the profile is not active. Or, erm.. yeah, I got nothing.
The trick is to visit the Linkedin logo url with valid midToken parameter.
The url is:
Valid token returns the image, invalid token results in 401 http status code.
No, seriously. People copy & paste links with these tokens, some of the urls from the emails are cached.
There are lots of results with valid tokens.
At the moment I don’t know how these tokens are generated. For now, I will stick with random tokens obtained from google.
Try to open some members only url with valid midToken.
For example, try accessing linkedin group as guest:
For valid tokens you will be redirected to a page where you can see the name behind the account and the notifications count at the top left corner.
Screenshots in case this token is destroyed.
Be careful when posting links from Linkedin.
If you know Jeff, please tell him to check his linkedin profile.