g.page modifiers

[Wirenut]

I downloaded the GMB app and noticed that inside it will send a review link to someone thru text or email or any other method you want, but the link uses ?gm at the end.

Example: [URL='https://g.page/Company/review?gm']https://g.page/Company/review?gm[/URL]

Normally it is without the ?gm

I am curious what the ?gm does and if anything knows the other modifiers or g.page URLs?

 

[Wirenut]

I just noticed in the browser version of GMB the "Share your Business Profile" seems new:

And when clicking on it, it also puts the ?gm at the end of the link to my Google profile https://g.page/Company?gm

So it adds the ?gm to both the review link and profile link.

 

[Contractor]

Google sometimes gives a modifier of ?rc as well. I am not sure what any of these mean but I’m definitely curious.