Web Browser User Agents

User agent strings are presented to web servers any time a device or browser connects to the webserver and requests a resource such as an image or html page. User agents can help you determine the population of your website users or help you determine if you should develop your website to fit different devices and screen sizes.

Your User Agent

Some Example User-Agents

Windows User Agents
Mac OS User-Agents
Linux/Unix/Beos User-Agents
Search Spider User-Agents

Further Reading

The list above is obviously not complete as there are thousands of different user-agent strings. I found the following site very complete if you need a full list. udger.com/resources/ua-list/.