What is a user agent parser?
User Agent parser – how it can be used One of the main use cases of a user agent parser is to identify and handle requests from certain types of traffic. By checking device capabilities or browser capabilities, you can decide which content to send down to the requesting device, or even adapt the content on the fly.
What does the user agent tell you?
3 facts about User-Agent that every developer should know The User-Agent (UA) is a string contained in the HTTP headers and is intended for browser detection: to identify the device/platform of the visiting user, and can be used to determine appropriate content to return.
What is device user agent?
About User Agent Information Tool User Agent refers to an identifier for the device OS and browser. It contains all the information used to identify the operating system of a device and operating system version. It also contains information about the browser being used by the user and the browser version.
How reliable is user agent?
User agent is 100% fallible and you should not rely on it for anything useful. Most of the time it is pretty reliable, in that most people can’t be bothered to change this information. So using it for purely secondary, and ease-of-use, functionality is OK.
Why do user agents start with Mozilla?
Internet Explorer is released. It spoofs Netscape by starting its User-Agent with Mozilla/ because web servers were routinely browser sniffing and serving pages with frames – a feature supported by both Netscape and IE, but not other browsers of the era – to Netscape only.
What is a User-Agent string?
A browser’s user agent string (UA) helps identify which browser is being used, what version, and on which operating system. Like all other browsers, Chrome for Android sends this information in the User-Agent HTTP header every time it makes a request to any site.
How do I Change my user agent?
To change User Agent in Microsoft Edge, do the following. Open Microsoft Edge. Press the F12 key to open its Developer Tools. Go to the Emulation tab. Under Mode, click in the User agent drop-down list. Choose the desired web browser to change the user agent string.
What is an example of an user agent?
A user agent is therefore a special kind of software agent. Some prominent examples of user agents are web browsers and email readers. Often, a user agent acts as the client in a client-server system. In some contexts, such as within the Session Initiation Protocol (SIP), the term user agent refers to both end points of a communications session.
What are mobile user agents?
A mobile agent is a software abstraction that can migrate across the network (hence mobile) representing users in various tasks (hence agents). It can communicate in an agent communication language, it is also a computer system in a complex environment that realize a set of tasks and goals it was designed for.
What is a browser user agent?
Jump to navigation Jump to search. In computing, a user agent is software (a software agent) that is acting on behalf of a user, such as a web browser that “retrieves, renders and facilitates end user interaction with Web content”.