Question 1

What is a user agent string?

Accepted Answer

A user agent string is a text identifier that your browser sends with every HTTP request. It tells websites your browser name, version, operating system, and device type so they can serve compatible content.

Question 2

How do I find my user agent?

Accepted Answer

This tool automatically detects and displays your current browser's user agent string when you load the page. You can also paste any user agent string to parse it.

Question 3

Can I detect bots from user agent strings?

Accepted Answer

Yes. This tool checks for common bot signatures like Googlebot, Bingbot, and other crawlers. However, sophisticated bots may use spoofed user agents that mimic real browsers.

Question 4

Is my user agent data sent to a server?

Accepted Answer

No. All parsing happens directly in your browser using JavaScript. Your user agent string never leaves your device.

Question 5

Why do websites need my user agent?

Accepted Answer

Websites use user agents for content negotiation (serving mobile vs desktop layouts), analytics, compatibility checks, and security monitoring. It helps them deliver the best experience for your specific browser and device.

User Agent Parser & Detector

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