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 Explorer 11

Maria Garcia
• Friday, 16 October, 2020
• 10 min read

Thanks to the new flags page in Internet Explorer11, it is now very easy to change the user agent string. You can experiment with it using the latest publicly available Windows 10 build at this moment, which is 9879.

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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.

Other sites, such as Vodafone Greece, are even worse by denying to load at all unless I open them in another browser such as Firefox. I want to use Internet Explorer 11 instead, so I tried to open the Developer settings and change the user agent in Firefox or Chrome, but apparently I did not do that correctly, all the affected sites still detect I run IE 11.

Have you tried using the string below -other examples are shown on the following page (you can even try the Linux version) Mozilla/5.0 (Windows NT 10.0; WOW64; RV:54.0) Gecko/20100101 Firefox/73.0 Other sites, such as Vodafone Greece, are even worse by denying to load at all unless I open them in another browser such as Firefox.

I want to use Internet Explorer 11 instead, so I tried to open the Developer settings and change the user agent in Firefox or Chrome, but apparently I did not do that correctly, all the affected sites still detect I run IE 11. User agent changes successfully but cannot trick Vodafone or YouTube.

internet explorer changing agent support ie11 poor string

I couldn't find Safari 13 specific IE user agent string either. If Apple don't provide one, it is going to be tough to get IE user agent string working.

Do you have clone backup with previous version of Safari installed? 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 sergeant String that would Identify a current Internet Explorer version on a Mac. If you just want to trick the website into thinking you are using Internet Explorer, then any current version of Internet Explorer you would be using would have to be on Windows, so those strings should work.

The thing is, Apple introduced its own proprietary browser known as Safari back in 2003 and Microsoft decided to end its development for Mac shortly after that. This implies that you can't natively launch Internet Explorer on your Mac.

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Run Internet Explorer in Mac with VirtualBox (free) 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. Under the “Installation Method” menu, click on “Create a new custom virtual machine”.

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. Once you are done, don't forget to switch back to the default browser unless you want every page to display via IE.

If you ever wanted to make your web traffic seem like it was coming from a different browser–say, to trick a site that claims it’s incompatible with yours–you can. This allows you to request web pages intended for different browsers–or even different devices, like smartphones and tablets.

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Click the menu button to the right of the “Console” tab at the bottom of the Developer Tools pane and select “Network Conditions” If you don’t see the console at the bottom, click the menu button in the top right corner of the Developer Tools pane–that’s the button just to the left of the “x”–and select “Show Console”.

On the Network conditions tab, uncheck “Select automatically” next to User agent. It only works while you have the Developer Tools pane open, and it only applies to the current tab.

To create the preference, right-click on the about:config page, point to New, and select String. This setting applies to every open tab and persists until you change it, even if you close and reopen Firefox.

To revert Firefox to the default user agent, right-click the “general.user agent.override” preference and select Reset. Microsoft Edge and Internet Explorer have user agent switchers in their developer tools, and they’re nearly identical.

To open them, click the settings menu and select “F12 Developer Tools” or just press F12 on your keyboard. The developer tools will open in a separate pane at the bottom of the window.

agent explorer internet umstellen tipp profi f12 schieb sie auch koennen festlegen auswaehlen mozilla benutzerdefiniert firefox selbst wenn einen oder

You can find extensive lists of user agents on various websites, such as this one. It only applies to the current tab, and only while the F12 Developer Tools pane is open.

Chris has written for The New York Times, been interviewed as a technology expert on TV stations like Miami's NBC 6, and had his work covered by news outlets like the BBC. Since 2011, Chris has written over 2,000 articles that have been read more than 500 million times---and that's just here at How-To Geek.

This website is a collection of resources dedicated to understanding and working with user agents, including the new proposal which may end up eliminating user agents: Client Hints. As well as this, we've also got resources (such as our Frontend Library) dedicated to detecting frontend web browser features and settings, so that you can understand what technology your website visitors are using and help solve their technical problems.

In the early days of the internet, websites didn’t care what browser you used, because most pages were static. But today’s dynamic websites often adapt to the operating system, browser, or screen size your device uses.

An user agent is a string (line of text) that your browser sends to websites when you access them. User agents are important because sites can use them to modify the content they send to your browser.

explorer internet load visual studio tests agent definition user

For example, if you visit most modern sites in Internet Explorer 6, you’ll see a message that you need to upgrade your browser for proper compatibility. User agents also come into play when browsing on a mobile device, so websites know to show you the mobile-friendly version of a page.

Open Chrome’s Developer Tools by right-clicking anywhere and choosing To inspect, hitting Ctrl + Shift + I, or by pressing F12. On the Network conditions tab, uncheck Select automatically and you can then choose a new user agent from the list.

This lets you easily switch your user agent, including setting certain sites to use a different agent all the time. Press F12 or right-click on an empty spot of the page and choose To inspect element to open the developer tools window.

You’ll need to enable the hidden Develop menu in Safari before you can change your user agent. While there’s no quick toggle to change your user agent in the mobile versions of Chrome and Safari, you can easily make websites think your phone is a computer.

On Safari for iOS, tap the AA button to the left of the address bar and choose Request Desktop Website. You’ll find the same option in Chrome for iPhone by tapping the Share button at the top-right, followed by scrolling down and choosing Request Desktop Site.

explorer internet agent user

While swapping your agent can’t accommodate every possible real-world situation, it lets you get some basic testing done in a fraction of the time. Further, if backward compatibility is important for your site, swapping your user agent to IE 8 is a lot easier than installing a copy of ancient browsers manually.

Browsing mobile versions of pages means you only get the basics and aren’t wasting data on multimedia or other large items. While not as common as it once was, sometimes you’ll come across websites that tell you Firefox doesn’t work with the page, or you must use Internet Explorer, or other similar warnings.

Some people explain that they use these services to get around sites that block entire operating systems. While there’s really no good reason for a site to block an entire OS, you could run into a page that complains about you using Linux.

If you’ve used Windows all your life, you can jump around some sites and see if they look any different when using Mac or Linux. Or change your user agent to an ancient version of Internet Explorer, then see how many sites still support it.

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