What Does Your User Agent Say About You?


A user agent is a computer program representing a person, for example, a browser in a Web context.

Besides a browser, a user agent could be a bot scraping webpages, a download manager, or another app accessing the Web. Along with each request they make to the server, browsers include a self-identifying User-Agent HTTP header called a user agent (UA) string. This string often identifies the browser, its version number, and its host operating system.

Spam bots, download managers, and some browsers often send a fake UA string to announce themselves as a different client. This is known as user agent spoofing.

The user agent string can be accessed with JavaScript on the client side using the navigator.userAgent property.

A typical user agent string looks like this: "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0".


User Agent String

Browser Data

User Agent String Explorer

Ellen Grant
• Wednesday, 11 November, 2020
• 9 min read

Thanks to the new flags page in Internet Explorer 11, it is now very easy to change the useragentstring. To change the UserAgentstring in Internet Explorer 11, you need to open the Flags page mentioned above.

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Type the text below in the IE address bar and press Enter on the keyboard: Now Internet Explorer 11 tells websites that it is Firefox running on Linux.

Additionally, you can set the Sergeant text box back to By Sergey Lukashenko on January 2, 2015, last updated on March 22, 2018, in Internet Explorer.

Sergey Lukashenko is a software developer from Russia who started Winner back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software.

Making statements based on opinion; back them up with references or personal experience. Modify the useragentstring sent by Internet Explorer by editing the Windows registry.

Since this tweak involves editing the Windows registry it is strongly recommended that a backup is made before making changes. Go to File menu export, navigate to a location, give filename and click.

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Open Windows Registry Editor by executing reedit. Navigate to the following location HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\ Sergeant \Post Platform Right-click on the right pane and create a new String Value.

Have you tried Microsoft Edge as the User Agent ? Try 'Other” at the bottom of the pop-up, enter the user agent string and “OK”.

I have searched the Web and find all sorts for Chrome etc but I cannot find a string to paste for IE of any version to run on Safari 13 I couldn't find Safari 13 specific IE useragentstring either.

There was a IE extension that used to be free on chrome as well and now they want to charge u for it. I usually use the developer tab but my computer auto updated itself to 13.0.3 and not IE is gone ...

There has not been an Internet Explorer version for Mac in 16 years. There is no userAgentString that would Identify a current Internet Explorer version on a Mac.

explorer internet agent user

This will work for the agent string : Mozilla/4.0 (compatible; MSI 8.0; Windows NT 5.1; Trident/4.0) Unfortunately, you have to do this step each time you want to use the in question website.

Mozilla/4.0 (compatible; MSI 8.0; Windows NT 5.1; Trident/4.0) It is possible to change or “fake” what your web browser sends as its user agent.

You’ve probably been annoyed at one time or another when visiting a website that requires a specific browser. Luckily, you can fool a website into thinking you’re using a different browser and you can do this with most, including Safari.

The solution to this was often to send a false useragentstring,” which would fool the web server into delivering you the preferred content. Today, users are less likely to have a problem since websites and browsers are better at adhering to web standards.

The “Other…” option allows you to specify an user agent other than those listed, such as if you’re curious to see how Google Chrome on an iPad running iOS 8.2 renders, you’d use the appropriate string. When you open the “Other…” option from the Sergeant menu then, you’d simply type of copy the useragentstring for the browser you want to test.


If you have anything you’d like to add, such as a question or a comment, please provide feedback in our discussion forum. He's covered Windows, Android, macOS, Microsoft Office, and everything in between.

Mozilla/5.0 : Previously used to indicate compatibility with the Mozilla rendering engine. (HTML, like Gecko) : Browser platform details.

Automated agents are expected to follow rules in a special file called robots.txt “. The popularity of various Web browser products has varied throughout the Web's history, and this has influenced the design of websites in such a way that websites are sometimes designed to work well only with particular browsers, rather than according to uniform standards by the World Wide Web Consortium (W3C) or the Internet Engineering Task Force (IETF).

Websites often include code to detect browser version to adjust the page design sent according to the useragentstring received. Thus, various browsers have a feature to cloak or spoof their identification to force certain server-side content.

For example, the Android browser identifies itself as Safari (among other things) in order to aid compatibility. User agent sniffing is the practice of websites showing different or adjusted content when viewed with certain user agents.


An example of this is Microsoft Exchange Server 2003's Outlook Web Access feature. When viewed with Internet Explorer 6 or newer, more functionality is displayed compared to the same page in any other browsers.

Web browsers created in the United States, such as Netscape Navigator and Internet Explorer, previously used the letters U, I, and N to specify the encryption strength in the useragentstring. Until 1996, when the United States government disallowed encryption with keys longer than 40 bits to be exported, vendors shipped various browser versions with different encryption strengths.

^ a b RFC 3261, SIP: Session Initiation Protocol, IETF, The Internet Society (2002) ^ RFC 7231, Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content, IETF, The Internet Society (June 2014) ^ Net news Article Format. Browser Versions Carry 10.5 Bits of Identifying Information on Average “, Electronic Frontier Foundation, 27 January 2010.

^ User Agent String explained: Android WebKit Browser”. Mozilla/5.0 (Linux; U; Android 2.2; ends; HTC_DesireHD_A9191 Build/FRF91) Apple WebKit/533.1 (HTML, like Gecko) Version/4.0 Mobile Safari/533.1 ^ Emberton, Stephen.

Though using a Virtual Machine to install Internet Explorer on Mac is not an easy fête, it is available for anyone who feels it is the most practical technique. To get started, you will have to download VirtualBox and Windows 10 ISO File.

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Under the “Installation Method” menu, click on “Create a new custom virtual machine”. Secondly, Virtual Machines will use a lot of your Mac memory resources which will compromise its performance.

This hidden menu includes a wide range of tools and features which can be used by any web developer. Two of them will come in handy if you are looking to use Internet Explorer on Mac or view non-cooperating sites.

Show Develop menu in Safariing you've done that, you will have the freedom to access Safari Developer tools with which you can empty caches, inspect websites and most importantly simulate other sites and in this case, Internet Explorer. Sergeant with Together webpage will then automatically refresh and be displayed in such a way that it would appear on Internet Explorer.

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