The HTTP User-Agent request header is a characteristic string that lets servers and network peers identify the application, operating system, vendor, and/or version of the requesting user agent.
It's a short, technical description of the web browser, operating system, (and maybe mobile device) that you're using as you access the internet. Your web browser sends it to every website you visit.
On the Web, a user agent is a software agent responsible for retrieving and facilitating end-user interaction with Web content. [1] This includes all web browsers, such as Google Chrome and Safari, some email clients, standalone download managers like youtube-dl, and other command-line utilities like cURL.
Apr 12, 2019 · With Microsoft Edge adopting Chromium, we are changing our user agent string to closely resemble that of the Chromium user agent string with the addition of the “Edg” token.
Find out your user agent string, browser, opera system, device and more with this tool. Learn what a user agent is and how it is used for feature detection and compatibility.
This might be a browser that Google Workspace does not support. https://support.google.com/a/answer/33864 · This site uses cookies from Google to deliver its services and to analyze traffic
Apr 7, 2025 · Discover the groundbreaking advancements in AI with Computer Use Agents (CUAs). In this blog, Marco Casalaina shares how to use the Responses API from Azure...
Aug 5, 2025 ... A user agent is a text string sent by your browser or script during an HTTP request to identify the client's software and operating environment ...
This extension is designed to shield your online privacy and make it super easy to appear as if you're browsing from different devices.
With this extension, you can quickly and easily switch between user-agent strings. Also, you can set up specific URLs that you want to spoof every time. Please note that this does not provide improved privacy while browsing the Internet and that some sites might have other means to figure out that the browser is not what it pretends to be.
The HTTP header User-Agent is a request header that sends a characteristic string to web servers, allowing them to identify the Operating System (OS) and browser of the client making the request. Every time your browser connects to a website, it includes the User-Agent field in the HTTP header.
To better understand what hosts are using this specific user agent string, I can take a look at the raw data. The data used for this search was only the last 7 days. # read web honeypot json files # cat /logs/webhoneypot*.json # search for values that do not have a blank user agent # jq -r 'select(.useragent!="")' # search for our specific user agent string (Windows 7, Firefox 22) # jq -r 'select(.useragent[]=="Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0")' # output the source IPs, sorted by the number of times the source IP was seen # jq -r .sip | sort | uniq -c | sort -n cat /logs/webhoneypot*.json | jq -r 'select(.useragent!="")' | jq -r 'select(.useragent[]=="Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0")' | jq -r .sip | sort | uniq -c | sort -n 831351 80.243.171.172
Agents access data continuously. They generate furious spikes in activity and discard their workspace once their work is complete. Their work “habits” strain databases optimized for the infinitely slower, more deliberate interactions of a human user.
A User-Agent refers to the software used on the client side to access servers based on specific protocols.
The User-Agent (UA) string is contained in the HTTP headers and is intended to identify devices requesting online content. The User-Agent tells the server what the visiting device is (among many other things) and this information can be used ...
User-agent checker instantly tells your browsers user agent. User-agent is the identifier which lets the server know what browser is requesting the resource or what operating system the request initiator uses.
The user_agent processor extracts details from the user agent string a browser sends with its web requests. This processor adds this information by default...
Oct 8, 2020 · Hi,I'm doing some work with SharePoint online, specifically, and am trying to get a handle on the "UserAgent" field. I keep seeing agents which I would...
The extension enables user-agent spoofing on specific domains only; it is conversely possible to exclude certain domains from spoofing. Check the Options page for more info. 5. You can set per-site user-agent strings 6. There is an option to randomize user-agent strings. 7.
We've collected millions of user agents and have categorised a selection of them here for you, based on many of the things we detect about them - Operating System, Browser, Hardware Type, Browser Type, and so on.
Mar 31, 2022 · Unusual user agent found in table AADNonInteractiveUserSignInLogs Hello, Investigating the registers of the table "AADNonInteractiveUserSignInLogs", I have found a user …
Oct 7, 2023 ... It's historically used as a signal to which browser you're using or what bot you are. Some sites (looking at you Google) use it or some other technique to ...
Mar 6, 2023 · Defender for Cloud Apps Outdated Browsers - Wrong User Agent String Hi, I have been creating Activity Policies to detect logins from outdated browsers. Frustratingly, users who I know …
A user agent is a computer program representing a person, for example, a browser in a Web context.
Dec 13, 2018 · Microsoft Outlook User-Agent string ?!? Hello everyone, First post here 🙂 I ran into the user-agent string below and was wondering where it came from. Is it somehow related to Office365? …
Feb 27, 2025 · comprehensive tutorial on building an AI agent using Azure AI Agent service and the Azure AI Foundry portal. AI agents represent a powerful new paradigm in...
Jun 13, 2022 · Thank you for your response. Yes, it is an org-wide team. I checked logs and it says that initiated by actor is User-Agent "SkypeSpaces/1.0a$*+" and Display name "MS Teams Services" I …
Apr 25, 2009 ... A user agent is simply the program that contacts the web server on behalf of the user. Majority of user agents are general purpose browsers.
Beginner's Guide to User-Agent HTTP Headers in Testing Learn what a User-Agent Header is, how it works, and how to test it effectively. Use Requestly to modify and test different User-Agent strings easily.
Apr 25, 2025 · ActorInfoString solves this by recording the exact user agent responsible for each audited event. This improvement means that, once enabled, audit logs will present an unambiguous record of …
Discover what a user agent is and how it facilitates web interactions. Learn about User-Agent strings and their role in web optimization.
Feb 11, 2026 · How we built an enterprise-grade multi-agent system that preserves user identity across AI agents and Databricks Introduction When building AI-powered...
Your user agent is a string that web servers use to identify your browser and optimize content delivery. Learn what a user agent is, how to troubleshoot browser issues, and see your user agent details on this site.
List of user agents categorized by device and platform. Utility to parse user agents and get information like operative system device
But we've got collections of the latest user agents grouped by operating system - so by looking for "latest windows user agents" you'll get the latest user agents for all the major browsers that run on Windows.
Go on, put us to the test. Try our User-Agent and User-Agent Client Hints HTTP header parser below and we'll show you what information we can get.
Overriding the user agent string changes how the browser identifies itself to web servers.
NEW LIST: List of User-Agent strings The standard way to pass information to the server about the visiting device is to include it in the User-Agent (UA) string. This information typically passes the name and version of the browser among many other details.