A catcher not named Salvador Perez hasn’t won a gold glove at catcher since 2012 (Matt Wieters). That makes four-straight gold gloves for Perez, 40% the way to the probably unbreakable record of consecutive catcher gold gloves by Ivan Rodriguez from 1992-2001 (10). He is halfway to the second closest streak in Yadier Molina’s eight-straight from 2008-2015 (broken this year by Buster Posey).
There is no doubt that Perez is a good defender. He gets good grades for throwing out runners (though newer metrics that consider the baserunner and pitcher in the play disagree) as well as being known as being a Will Shields-esque blocker when it comes to pitches in the dirt.