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What Does Your User Agent Say About You?

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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".

(Source: Mozilla.org)

User Agent String

Browser Data

User Agent Change Vivaldi

author
Ellen Grant
• Sunday, 18 October, 2020
• 7 min read

While all the above sounds great, over time the Sergeant has been misused by some web developers and occasionally even abused by the bigger tech companies, in positions of power. Vivaldi is frequently blocked, shown alternate (incorrect) versions of a website or spurious warnings are displayed, based solely on the Sergeant.

vivaldi adds releases changes agent ohne strings attached schranken verbesserungen weitere improvements
(Source: meterpreter.org)

Contents

Sometimes it could arguably be considered a mistake, with the development team of a website naively assuming that only browsers they have personally tested be given access to their site, blocking anything that isn’t. Although it is a big hack job, it works surprisingly well in much the same way as providing someone else’s name can get you into an exclusive club.

We also often encounter websites that block the exact string Vivaldi ”, with no contact or warning to us. When this happens and error messages are displayed, or intentionally invalid copies of the website are sent our way, users typically assume Vivaldi has an issue, and even sometimes struggle to comprehend that anyone would target us.

This can be clearly seen by us in testing, by intentionally misspelling our name by one character in our Sergeant, e.g. “Vivaldi” or “Vivaldi”. Sadly a host of site-specific workarounds (let’s not call them “fixes”) have to be baked into the browser permanently.

On Google.com if you present a Vivaldi user agent and arrive via a redirect, the search text box will be misaligned On Google Docs if you present a Vivaldi user agent you will receive a warning On Facebook’s WhatsApp web interface if you present a Vivaldi user agent, you cannot enter the site and are advised to switch to one of our competitors On Microsoft Teams (chat and collaboration website), presenting a Vivaldi user agent will stop you from being able to use the website On Netflix, presenting a Vivaldi user agent results in a suggestion to install Silver light to play videos… yes… really… Silver light! In all such cases, we have tried via various means to get someone in the respective companies to stop breaking these sites for our users.

Follow-up requests have been made both by us and our more technical fans multiple times since than, via various contact channels but to no avail. The problem with our current approach is that with the web being almost infinite, we can’t possibly discover all the websites who have blocks set against us.

vivaldi compatibility improves agent update user site windows
(Source: www.windowsmode.com)

For a handful of sites where we know the label Vivaldi (and our version number) is responsibly used, we will present our full Sergeant. There is a downside for us in doing this since Vivaldi will effectively disappear from third party rankings of browser popularity (we will be indistinguishable from Chrome) but that is a price we will happily pay to provide the best website compatibility for our users.

A fan of Linux (Slackware), uni cycling, simple solutions and a “slow” lifestyle. I did everything as written in the article by link user agent spoofing”, but it did not work.

A UA string is a piece of text that browsers send to websites when they initiate a connection. For decades, websites have used UA agent strings to fine-tune performance and features or block outdated browsers.

However, many website owners these days use UA strings to block users from accessing their sites. Some do it because they're not willing to deal with browser-specific bugs, some do it because of pettiness, while big tech companies like Google and Microsoft have done it (and continue to do it) to sabotage competitors on the browser market.

The browser is not an outdated piece of junk that website owners need to block from their sites. Vivaldi is a modern browser built on Chromium, which is the same code that runs underneath Chrome.

itself vivaldi disguising forced browser agent change user hacker chrome
(Source: sysdvd.com)

Furthermore, when a website blocks Vivaldi, they also show messages telling users to upgrade their browsers. Sadly, needing to hide themselves as Chrome in order to gain access to various websites isn't a desperation move specific to Vivaldi alone.

I'd like to introduce you to Threads, a more compact view for your Pocket notes, which happens to be a perfect fit for Vivaldi's side panels! For those not familiar with it, Pocket allows you to save web pages to read them later on the device of your choice.

I also try to contact the site via their fill out a support request page, email or Twitter if they have an account that replies. It is true having the UA spoofing hidden in developer tools is not good for the average user.

I support the addition of a user agent switcher, because many websites work correctly only after presenting the browser as Chrome, while writing for support does not give answers, examples of such sites are Canva.com or the Polish bank T-Mobile. Make the change site or domain dependent so that it would only be made for the specific instances where it might help.

I run into a problem now and then where a page won't load but suggest that Opera will work. along this would lead to (potentially) different user agents for main sites and 3rd party resources.

(Source: arrowblogs180.weebly.com)

There will be clashes on browser sniffing done by the main site and the outsourced JS on a different domain (CDN). Until session context management is a thing in Vivaldi, a tab-(or window-) specific setting is likely the way to go.

An Open With context menu is all that is needed for these stubborn sites that do not accept Vivaldi : @catweazle Only EVs and low emission vehicles can enter Central London free of charge.

Only disabled drivers can use the parking bays nearest to the store's entrance. Only buses, Black Cabs and cycles permitted in Oxford Street, etc.

@catweazle Only EVs and low emission vehicles can enter Central London free of charge. Only disabled drivers can use the parking bays nearest to the store's entrance.

Because some internet websites unfairly block browsers from accessing their services, starting with Vivaldi 2.10, released today, the Vivaldi browser plans to disguise itself as Chrome to allow users to access websites that unfairly block them. A UA string is a piece of text that browsers send to websites when they initiate a connection.

vivaldi agent compatibility user improves update site
(Source: news.softpedia.com)

For decades, websites have used UA agent strings to fine-tune performance and features or block outdated browsers. However, many website owners these days use UA strings to block users from accessing their sites.

Some do it because they're not willing to deal with browser-specific bugs, some do it because of pettiness, while big tech companies like Google and Microsoft have done it (and continue to do it) to sabotage competitors on the browser market. The browser is not an outdated piece of junk that website owners need to block from their sites.

Vivaldi is a modern browser built on Chromium, which is the same code that runs underneath Chrome. Furthermore, when a website blocks Vivaldi, they also show messages telling users to upgrade their browsers.

Sadly, needing to hide themselves as Chrome in order to gain access to various websites isn't a desperation move specific to Vivaldi alone. Read more about this ‘quarantine’ year from Vivaldi CEO Jon on Tetchier.

Play it in the Vivaldi browser on your Windows, Mac, and Linux computers as well as on Android devices. With Vivaldi browser’s latest versions on desktop and Android out, the last two weeks have been buzzing with excitement.

browser vivaldi detection fix unless spoof shut string agent user please microsoftteams comments
(Source: www.reddit.com)

Vivaldi Technologies chief executive Jon on Tetchier. SuppliedNorway-based Vivaldi Technologies, developer of the browser of the same name, says it has issued an update to change the browser's user agent string to Chrome in order that it would work on all websites. “ Vivaldi users regularly encounter messages that they have to upgrade their browsers or the site will not work,” the statement said.

This coupled with the new capabilities 5G brings opens up huge opportunities for both network operators and enterprise organizations. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaled Times) and Australia (Daily Commercial News (now defunct) and The Age).

Other Articles You Might Be Interested In

01: Python Requests Header User Agent
02: Python User Agent Library
03: Python Wget User Agent
04: Php Check User Agent
05: Php Get User Agent String
06: Php User Agent Parser
07: Robots.txt User Agent
08: Robots.txt User Agent Disallow
09: Robots User Agent
Sources
1 developers.google.com - https://developers.google.com/search/docs/advanced/crawling/overview-google-crawlers
2 searchfacts.com - https://searchfacts.com/robots-txt-allow-disallow-all/
3 moz.com - https://moz.com/learn/seo/robotstxt
4 developers.google.com - https://developers.google.com/search/docs/advanced/robots/create-robots-txt
5 yoast.com - https://yoast.com/ultimate-guide-robots-txt/
6 medium.com - https://medium.com/@esty_c/robots-txt-in-asp-net-core-36007684ea02
7 en.wikipedia.org - https://en.wikipedia.org/wiki/User_agent
8 www.robotstxt.org - http://www.robotstxt.org/robotstxt.html
9 developers.google.com - https://developers.google.com/search/docs/advanced/crawling/googlebot
10 www.keycdn.com - https://www.keycdn.com/blog/web-crawlers