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 List Download

Carole Stephens
• Thursday, 03 December, 2020
• 11 min read

Whenever a web browser or almost any makes a HTTP or HTTPS connection over the internet (as your web browser does but some software program do as well) the web browser or program identifies itself and provides information about itself via the user agent string. This user agent string tells the website or other HTTP resource what device/browser you are using.

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Comments are checked by a human to make sure they are not spam/automated and are on topic and related to Downloadable Sergeant Web Browser Strings . Sergeant strings come in all shapes and sizes, and the number of unique user agents is growing all the time.

If you need to integrate the user agent parser directly into your website or system then it's very simple to use the API. This will let you do things like advanced filtering and searching, identify trends in user agents, perform statistical analysis and other interesting applications.

Web-sniffer n/a Collage n/a webs n/a Fuzz n/a What Web n/a Gunpowder n/a WkHTMLtoPDF WebKit WordPress ping back n/a Yahoo Ad monitoring n/a Yandex. Translate n/a Yea link client n/a Yours n/a NameLayout engine n/a Mobiles n/a Mr.4×3 Powered n/a. This morning, we thought we had a little time to do something fun, and so we created a command to generate a list of all user agent strings (or signatures) on a very high traffic Joomla website that we maintain.

…sorts the list returned by the previous command by number of occurrences of user agent strings descending. …removes the first column (which contains the number of occurrences of each user agent string).

…returns the first 500 lines (e.g. the top 500 user agent strings, ordered by number of occurrences, descending). If you decide to run the above set of commands, then please keep in mind that it will take about 10-15 minutes to process a 10 GB log file even when using a relatively powerful server with an SSD drive.

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That can be a hard thing to do if you only know a handful of user agents. Not to mention building your own comprehensive list of user agent strings takes time.

Poncho is intended for web application developers and the testing community Click on any string to get more details Poncho 2.0b2BonEcho 2.0b1BonEcho 2.0a3BonEcho 2.0a2BonEcho 2.0BonEcho 0.7b1 Click on any string to get more details Browser Firefox based browser for Mac OS X.

Camino 8.723Camino 8.443Camino 3.245.226Camino 2.176.223Camino 2.1a1preCamino 2.1.3preCamino 2.1.2Camino 2.1Camino 2.0b3preCamino 2.0.6Camino 2.0.3Camino 2.0.2Camino 1.6preCamino 1.6a1preCamino 1.6.7Camino 1.6.11Camino 1.5.5Camino 1.5.4Camino 1.5.1Camino 1.5Camino 1.2+Camino 1.1b+Camino 1.1bCamino 1.1a2Camino 1.1a1+Camino 1.1a1Camino 1.0rc1Camino 1.0b2+Camino 1.0b2Camino 1.0b1Camino 1.0a1Camino 1.0.4Camino 1.0.3Camino 1.0.2Camino 1.0.1Camino 1.0+Camino 1.0Camino 0.9Camino 0.8bCamino 0.8.4Camino 0.8.1Camino 0.7 Charon is a web browser for the Inferno operating system Click on any string to get more details Cheshire is designed to make it easy for users to read and write email, surf the web, listen to AOL Radio and dial up to the Internet.

Cheshire includes AOL's Parental Controls and works with Apple's built-in applications like chat and photo. Click on any string to get more details Chimera 0.6 Free open-source web browser developed by Google.

Chromium is the name of the open source project behind Google Chrome, released under the BSD license. Comodo_Dragon Conker or is a keyboard-oriented, customizable, extensible web browser based on Mozilla Gunrunner, written mainly in JavaScript, and inspired by software such as Emacs and vi.

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Fluid 0.9.6Fluid 0.9.4 Web browser for the Trans Operating System Click on any string to get more details Galaxy 1.0 Click on any string to get more details Gallon 2.0.7Galeon 2.0.6Galeon 2.0.4Galeon 2.0.3Galeon 2.0.2Galeon 2.0.1Galeon 2.0.0Galeon 1.3.4Galeon 1.3.21Galeon 1.3.20Galeon 1.3.19Galeon 1.3.18Galeon 1.3.17Galeon 1.3.16Galeon 1.3.15Galeon 1.3.14Galeon 1.2.9Galeon 1.2.8Galeon 1.2.7Galeon 1.2.6Galeon 1.2.5Galeon 1.0.3 GranParadiso is a developer preview release for the next major version of Firefox that is being built on top of the next generation of Mozilla's layout engine, Gecko 1.9.

Iron Mellon is a lightweight web browser for the win32 (Windows) platform based on the Gecko layout engine. Mellon is free, open source software released under the GNU General Public License.

K-Ninja 2.1.3K-Ninja 2.1.1K-Ninja 2.0.4K-Ninja 2.0.2K-Ninja 2.0 Chinese browser from Fox lab, uses Gecko rendering engine Click on any string to get more details Kapok 3.0 Kazehakase is a web browser for UNIX compatible environment that is implemented with multiple layout engines.

Myibrow 4alpha2myibrow Click on any string to get more details MyIE2 After Firefox3.5 (“Shiretoko”), the next version of Firefox is being developed under the project name Amorous “. Amorous 3.6a2preNamoroka 3.6a1Namoroka 3.6.9preNamoroka 3.6.8Namoroka 3.6.6preNamoroka 3.6.5preNamoroka 3.6.3preNamoroka 3.6.3Namoroka 3.6.2preNamoroka 3.6.20preNamoroka 3.6.19preNamoroka 3.6.18preNamoroka 3.6.17preNamoroka 3.6.17Namoroka 3.6.15preNamoroka 3.6.14preNamoroka 3.6.13Namoroka 3.6.12preNamoroka 3.6.10preNamoroka 3.6.10Namoroka 3.6 Click on any string to get more details Netscape Pre-0.2Navscape Pre-0.1 Mosaic was the first popular World Wide Web browser and Gopher client.

It was the first browser to actually implement images embedded in the text, rather than displayed in a separate window. Mosaic was developed at the National Center for Super computing Applications (NASA) beginning in late 1992.

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NASA released the browser in 1993, and officially discontinued development and support on January 7, 1997. Here is a working list of all user agents for the major, top search engines.

Having the user agents for these popular bots all in one place helps to streamline my development process. Each search engine includes references and a regex pattern to match all known user agents.

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