I would hope your agent would voluntarily offer up some performance data on your listing.
But if she doesn't, tell her you want to see your listing's online view count for #Facebook, #Instagram, #Zillow, #Redfin, #Realtor.com, etc.
What?!
She doesn't know how to find those numbers?!
Wait?!
She doesn't have an Instagram ad running?!
That's a major problem you need to address IMMEDIATELY!