Why do all user agent strings start with Mozilla?

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.

Why does User Agent have multiple browsers?

1 Answer. They all have Mozilla in beginning of their Useragent because they follow standard mozilla rendering back in 2000 era. Most browsers share some of each other rendering engines, that’s why their useragent often consist of similar values. Browsers have came a long way to reach their current state.

What does User Agent Mozilla mean?

A user agent is a computer program representing a person, for example, a browser in a Web context. A typical user agent string looks like this: “Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0” . …

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.

Why does Chrome user agent say Mozilla?

Mozilla/5.0 is the general token that says that the browser is Mozilla-compatible. For historical reasons, almost every browser today sends it. platform describes the native platform that the browser is running on (Windows, Mac, Linux, Android, etc.) and if it is a mobile phone.

What is the user agent string for Internet Explorer?

Get latest user agents for Internet Explorer via API

What is the purpose of user agent?

A user agent is any software that retrieves and presents Web content for end users or is implemented using Web technologies. User agents include Web browsers, media players, and plug-ins that help in retrieving, rendering and interacting with Web content.