Every request your browser makes announces itself through a user-agent string, and that string is wrong or outdated more often than people think. When a site serves you a “unsupported browser” page, that announcement is why.
Open the inspector to see your live user-agent string, platform, resolution, and touch support. Nothing is uploaded; it reads the local browser state. It answers most “why is this site behaving differently” questions in one glance.
Try it now: open the free tool, runs 100{b8b7921c843ac9e5edcbca134af59decad3ed340e0e3b2e6c286158f277affea} in your browser.
Bottom line: check once when a server treats you oddly.
Your turn: use the tool free here, no signup, nothing leaves your device.
How do you use Browser User-Agent Inspector?
Open the Browser User-Agent Inspector in your browser (See the live browser string and OS of the visitor). Type or paste your input, adjust the options, and copy the result. Everything runs locally on your device with no account and nothing stored, so the three steps below take seconds even for confidential work.
- Paste the data or snippet you want to process.
- Run the tool and watch the output update.
- Copy the result for use in your own code.
Try Browser User-Agent Inspector free. It opens right in your browser.