Most common user-agent for the browser?

So I’m using Vivaldi which I think is a great browser but it’s user agent isn’t that uniqe. So I was just wondering, what are some of the most common user-agent strings out there?

There’s a variety of ways to determine your browser / identify you. By changing your user agent without fully disguising your browser as a different one as well (which, realistically you can’t) you only make yourself more identifiable.


Yeah but Vivaldi is alot more uniqe then just chrome. Found this site though:

Changed to the most common. Got a little better result at

Remember that those websites only use comparatively simple ways of tracking you. If a company wants to track you they will. And a user agent won’t change anything about that.

Of course not, but I do what I can.

Not sure why there is even a user agent anymore in this day and age…

Just look at the user agents these days…

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.83 Safari/537.36 Vivaldi/1.91.862.6

Sooooooooo yeah. The Mozilla 5.0 thing is still from Netscape times, and was continues to be used in the Mozilla Suite (now Seamonkey) and Firefox for a long time (not sure, might even still be in there). Chrome adopted it when it was still a niche browser and a lot of sites were still using simple UA detection with string comparison to enable browser specific features and whatnot, so chrome users would had the same experience as a firefox user. Now chrome coming from Webkit obviously also used apples version string back then, which was just AppleWebKit, which stemmed from KHTML and wasn’t at all like Gecko by the way. Now that webkit had been developed further and not all features were backported to Safari, Apple introduced their Safari string, which was in turn picked up by Chrome again… for… reasons, I guess. And then of course Vivaldi which is just using it for the version.

Point is, User Agent is completely irrelevant by now. First and foremost it is not needed and should not be used for feature detection, there’s other ways to do that. The server doesn’t even need to know the client side, it was useful back when the web was the wild west and each browser did stuff differently, you could deliver different content with different browser hacks based on the user agent, but now…

So from a usability standpoint this thing is pointless by now… I wonder why it’s even still being sent ¯\_(ツ)_/¯

Enough of the rant though.
The most common user agent will always be the currently most popular browser in the last 1 or 2 versions, currently that’s chrome I think? It always depends on the website though. Overall biggest market share is Chrome though I think.

blender and user-agent-switcher for Firefox oth have an estensive list of the most common ones, just look at theirs and ctrl c + v