What is my user agent?
This is the user agent string your browser sends to every website you visit, along with what it reveals about your browser, operating system and device. Nothing is sent to our servers — the detection happens entirely on your device.
Your user agent string
Reading your user agent…
More about your setup
We don't log, store or transmit any of this. Reload the page on a different device to compare.
What is a user agent?
A user agent is a string of text your browser includes in the
User-Agent
header of every HTTP request. Servers read it to figure out what browser, version and
operating system you're on, so they can serve the right markup, assets or downloads.
For historical reasons most user agents look like a jumble of browser names — nearly all
of them still start with Mozilla/5.0
even when they aren't Mozilla. That's why a clean breakdown like the one above is easier to read
than the raw string.
Running servers and sites where details like this matter? Rocketeers makes self hosting effortless — or browse the Knowledge base for more.