User agent это

In addition, even more than robots like BingBot, Googlebot or Yahoo Bot can be identified. The engine responsible for displaying content on this device is AppleWebKit version Some mobile web browsers will let you change what the browser identifies itself as ie "Mobile Mode" or "Desktop Mode" in order to access certain websites that only allow desktop computers.

Custom version vectors, which can be detected using conditional comments , provide a more appropriate mechanism. Регистрация Справка Календарь Поддержка. For more info, see Detecting Internet Explorer More Effectively. Эта страница последний раз была отредактирована 10 мая в Dissecting user agent strings can be tricky, since there is no standard format. What can we do with it? News Tweets von UADetector. Так, многие веб-сайты, созданные в году, лучше соответствуют стандартам, чем это было ранее в истории Web.

When the internet was a text-based system, right back at the beginning of its use, users had to type commands to navigate and send messages.

• Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine.
• In the majority of cases, we use robots.
• This identification string is called the user-agent string and contains tokens that provide specific details about the program making the request.
• The web server can use this information to provide content that is tailored for your specific browser. Обратная связь - Searchengines - Архив - Вверх.
• Поделиться ссылкой на выделенное Прямая ссылка:
• This saves the user agent string in a variable and then displays it in an alert box: Эта страница последний раз была отредактирована 10 мая в

This section summarizes the tokens used by recent versions of Internet Explorer, which places three tokens in the user-agent string by default. To learn more, see Compatibility changes in IE Tokens added to the Pre-Platform key appear before the platform token in the final user-agent string.

Как изменить User Agent в браузере Safari

Besides a browser, a user agent could be a bot scraping webpages, a download manager, or another app accessing the Web.

In the SIP, the term user agent refers to both end points of a communications session.

Understanding user-agent strings

Этот сайт существует на доходы от рекламы. Your User Agent is: The instruction will not work if the file contains any blank lines. User agent information is stored in the userAgent property. Interaction Help About Wikipedia Community portal Recent changes Contact page. You can quickly contribute rough thoughts by forking this project on GitHub or SourceForge , or you can volunteer to help collate and organize information that is already there.

Therefore, mobile Web portals will often generate completely different markup code depending on the mobile phone used to browse them. This means that the version token represents the way Internet Explorer is presenting itself to the web server. In addition, even more than robots like BingBot, Googlebot or Yahoo Bot can be identified.

Earlier versions of the Windows RSS Platform returned this string:. The client is based on Safari version Tools What links here Related changes Upload file Special pages Permanent link Page information Wikidata item Cite this page. If Compatibility View is enabled for a webpage or the browser mode is set to an earlier version, the version token reports the earlier version.

Process Detail

Is this page helpful? This documentation is archived and is not being maintained. Sender ID Introduction and Resources: Views Read Edit View history. Like the user-agent string for Internet Explorer, this user-agent header provides details about your system.

Therefore we can guarantee that the parsing works like expected.

UA Detector can identify around different user agents, including almost different browsers. It can be spoofed, and a user can choose to hide it.

User Agent

Why does this matter? If you find additional tokens in your user-agent string, investigate them in more detail. We earn a referral fee when you buy services from many of the hosts on our site. Further Reading and Resources We have more guides, tutorials, and infogragphics related to coding and development: This allows the website to customize content for the capabilities of a particular device, but also raises privacy issues.

If you want your site to be indexed in search engines, adding the code above would be a bad idea. NET User agent data is stored in the HttpProductInfoHeaderValueCollection class. This guide is intended to be a very brief reference to the different methods you can use. Spam bots and Web scrapers often use fake user agents. The User-Agent string format is currently specified by section 5.