Com facebook katana user agent string android But the ones with katana in the User-Agent were all blocked due to various header deficits, notably that the UA begins with a non-word character (the [ bracket). 2. but occasionally I see ones like in my example below. IE provides Feature Tokens that contains information about . userAgentData. 020; wv) AppleWebKit/537. 0 Chrome/83. : First, you should get my posts in your inbox. It provides information about the device, operating system, and browser being used. Add the modeled content to ShareStoryContent. If it is installed, the request is made through the app. but the url above returns 404. I am currently working on a mobile site having a simple login page that validates username and password then authorizes users profile. g. 0 (Linux; U; Android 2. Technical information about the user agent string "Dalvik/2. The browser is developed by Facebook and renders web pages using the WebKit engine. You may see a string that looks like the following: Dalvik/2. 0 Lollipop when ART became the default runtime. In looking at the duplicate click counts by user agent, the following user agent appears at the top of every sent message (it is the biggest offender by The document contains logs from various web browsers and devices accessing websites and apps. Then, right-click the page and open the Inspect tool. When a user clicks on a link from a text message we record the user agent of the user's device. Samsung Internet for Android Latest Facebook Messenger Lite user agents: User agent Platforms Hardware; The User-Agent request-header field contains information about the user agent originating the request. useragentstring. Depending on browser you would also get additional information. 36 (KHTML, like Aug 24, 2023 · com. 15-b917dc User-Agent: MyProduct Foobar/2021. The name of the string resources should be self-explanatory. A string containing the version of the protocol – currently “1. agent, which can be used to retrieve the User-Agent string. 1, last published: a year ago. 17b3 This says that the browser in question is CERN’s LineMode browser, built on a library called libwww. 6. 'Facebook' is the user-facing, recognizable name of the app, while 'Facebook Katana' is an internal identifier utilized within the Android system for the same application. The UA string of Firefox is broken down into 4 components: Mozilla/5. 21. 0 Mobile Safari/537. H4) AppleWebKit/537. 150. This will function will help you to check any app installed or not. Every time your browser connects to a website, it includes the User-Agent field in the HTTP header. When feature detection APIs are not available, use the UA to customize behavior or content to specific browser versions. Don’t rely on the specific Chrome version number (for example, 30. They are categorised by the browser, operating system, hardware type and so on; you can also see how popular a user agent is. Mozilla/5. Facebook developed this Application. There is a system property called http. Meta uses web crawlers (software which fetches content from websites or web apps) for a number of different purposes. GitHub Gist: instantly share code, notes, and snippets. To implement Sharing to Stories by using the Facebook SDK for Android, in general, you should: Model the content that will be shared — for images, construct a SharePhoto; for videos, construct a ShareVideo. 0) as the version numbers Attach an image to the facebook. 36 (KHTML, like Gecko) Version/4. Jun 25, 2024 · There's no "standard" way of writing a user agent string, so different web browsers use different formats (some are wildly different), and many web browsers cram loads of information into their user agents. xml file in the facebook/res/values/ directory contains all the strings that the SDK uses. Copy a single user agent string into the User agent field and click Add. 0 (Linux; U; Android 5. If it is not found a value of -1 is returned. 0 Mobile Safari/533. Copy the backed up apk (see /sdcard/backups/apps/) to your PC. 36 (KHTML, like Dec 19, 2022 · Thanks for taking the time to read this article and I hope you liked it! If so, please help support me by hitting that clap button. 36 (KHTML If I run this string through udger. I see iPad in the first part of the user-agent, but I also see a lot of references to FB and iPhone and iOS and all kinds of other things. May 14, 2021 · I am trying to capture facebook https request from facebook android. 4; One Build/KTU84L. Share Improve this answer Jun 19, 2015 · TRANSLATING THE USER AGENT STRING Much of my understanding of these user agent strings came from plugging the user agent strings into this page and a fair amount of Googling. This will create a conveyed in the User-Agent string. A2; wv) AppleWebKit/537. 0. The browser is developed by Facebook and renders web pages using the Blink engine. Sometimes bots (crawlers etc) do have very simplistic user agents consisting of nothing but a fragment to identify itself, so unless your software is a bot, you should at least include some kind of fragment/s which also indicate the Dec 15, 2010 · Obtain the apk either: With the Backup function of Astro File Manager. 0 (Linux; U; Android 9. katana as an external app; Request the log status of the user to the facebook. 30. setType("text/plain"); shareIntent. Mar 7, 2023 · What is user agent for Android? The user agent for Android refers to the identification string that a web browser sends to a website, identifying itself as an Android device. setFlags(Intent. 0 (Linux; Android 10; X67 5G Build/QP1A. facebook. it renders web contents with WebKit on general Mobile Phone. N Apr 8, 2010 · As a User-Agent header's value is comprised of arbitrary product and comment strings, these are all valid User-Agent headers: User-Agent: Foobar User-Agent: Foobar/2021. This is for statistical purposes, the tracing of protocol violations, and automated recognition of user agents for the sake of tailoring responses to avoid particular user agent limitations. katana (i think this would be automatically) Attach the picture, title, message params to the facebook. Consider the example User-Agent string mentioned in RFC1945, the specification for the first version of the web: CERN-LineMode/2. 0: A string containing an identifier for the library that the navigating code is using to navigate. Jul 6, 2022 · 基础设置 手动安装. 36 (KHTML, like Gecko Android Browsers is sending Dalvik as the user agents in the request headers. 007) This user agent string belongs to Dalvik browser running on Android OS. Jan 27, 2019 · Mozilla/5. How it is possible to find an user agent with Dalvik coming from an Android with OS 6 (Marshmallow) if the Dalvik software it is not included in later versions of Android 4. publishin with Feb 6, 2023 · In computing, a user agent is a string that a web browser or other client software sends to a web server along with each request to identify itself and its capabilities. X_ string in the WebView user-agent string. This user agent string belongs to Facebook App browser running on Android OS. We're also able to detect whether a click is a duplicate since we send a unique link per user. E. userAgent gives you a string value. 36 (KHTML, like Gecko Apr 5, 2023 · User-Agent strings for Samsung devices. Click Add custom device. Sending both the client_ip_address and client_user_agent parameters for all of the events you’re sending through the Conversions API may help improve event matching and could also help improve ad delivery for any ad campaigns Your browser sends its user agent to every website you connect to. 0k+ User Agents. Jun 28, 2019 · Paste the full User-Agent String here Dalvik/2. This code is missing the check for the "Version" as quoted here: "If you’re attempting to differentiate between the WebView and Chrome for Android, you should look for the presence of the Version/_X. let me say for myself it is in Utilities. Current: New UA String used in. . Our Web Browser/Operating System Version Numbers API endpoint will provide you with the latest user agents for all sorts of popular web browsers and operating systems. info. This lack of This user agent belongs to Facebook App. com. Don't worry too much about it. X string in the WebView user-agent string. 0 Mobile Jul 6, 2016 · An example would be when a user registers an account. For comparison, here is an example user-agent Mar 26, 2025 · This user agent list is perfect for web scrapers looking to blend in, developers, website administrators, and researchers. 7" LTE: Mozilla/5. I run this code to get User Agent This user agent belongs to Facebook App. 1; PRO 5 Build/LMY47D) This user agent string belongs to Dalvik browser running on Android OS. It includes the user agent strings containing information about the operating system, browser, device, and app for over 30 different devices ranging from Android smartphones, tablets, and TVs to specific manufacturers and models. However, in this article, we’ll primarily focus on the user agent string as it relates to HTTP requests. com API Dalvik/2. Jun 22, 2024 · Challenges and limitations of user-agent strings. This was an adequately descriptive User-Agent Explore the best user agents of every device on earth and try the variety of user agents for your best use. 如果您使用 Maven，就只需添加 com. User agent strings are a vital tool for web developers and servers, providing a way to identify and serve content to specific browsers and devices. Latest Samsung user agents: User agent Android 7: Facebook Lite: Galaxy Tab A 9. tenjin:android-sdk:{VERSION} 到Gradle依赖项中，并且添加 mavenCentral()到源存储库（如果还没有的话）。 Sep 30, 2024 · 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. I can capture requests, but their body is encoded and I cannot understand these informations in the request's body. 210812. OR; With adb: Find out the apk path using adb shell pm path com. Include some indication of the OS/Platform/Hardware. 0 (Linux; U; Android 10; SM-G996B Build/RP1A. Application- Facebook App Facebook App Mar 5, 2024 · Is it a desktop user agent, an iOS user agent, or an Android user agent? For instance, if the website detects an Android user agent, the Android version of the webpage is returned compatible with the user's device. 1 Jan 22, 2024 · The user agent, often referred to as the UA string, is a critical component of web browsing that serves as a digital fingerprint, conveying essential information about the user's browser, operating system, and device. net, 2025 - User Agents Database Aug 22, 2017 · For these browsers the format of the user agent string is: Mozilla/[version> ([system and browser information]) [platform] ([platform details]) [extensions] Since Opera, who were the last to adapt to this standard, also started using the Mozilla user agent string, every popular browser uses this and will start the user agent string with Mozilla Aug 27, 2024 · The user agent string enables the server to identify the client and tailor responses accordingly. 4103. It includes Android, iPhone, Windows, tablets, desktops, bots and crawlers, games consoles and more. Apr 13, 2015 · The Facebook User-Agent string is quite similar to default browser’s string on both iOS and Android, but with some Facebook identifiers appended On both Android and iOS, the Twitter User-Agent string includes no Twitter information, and looks like it is using the default string for the platform’s webview Jun 3, 2024 · Components of a User Agent String. Let’s pull apart the first user agent string from above: Mozilla/5. May 9, 2023 · What is a User Agent? User agent refers to the software application or program that acts as a virtual identity of a user accessing a website or any online platform. 81 Safari/537. 0; ZTE BA520 Build/MRA58K) Looks scary, right? But when you start to look deeper, you can see that this is a ZTE Android phone. They generally include: Browser/Software Name: Indicates the browser or application name, such as "Mozilla" or "Chrome. We would love it if anyone can shed light on what the unknown ones refer to. com steps in - we decode your user agent string to figure out everything it's saying. N If I run this string through udger. . 014; wv) AppleWebKit/537. 0 (Windows NT 6. The UA string contains details about your web browser, operating system, device type, and more. 1 (API 22) 768x1280 Latest Facebook user agents: User agent Platforms Hardware; Mozilla/5. Get latest user agents for Android via API. Latest user agents: User agent Platforms Browser Hardware; Android 13: Facebook: Origin 679 Pro: Mozilla/5. 36 (KHTML, like Gecko) Chrome/117. – Dec 9, 2019 · Both Facebook's Android app as well as Facebook's iOS app use a so-called in-app browser, sometimes also referred to as IAB. 0 (Linux; Android 12; SM-G973F Build/SP1A. Use this tool to parse any user agent string you want to understand. Two examples being: Mozilla/5. 180610. Falls du das Problem nicht in der Google Suche-App reproduzieren konntest, solltest du auf einen anderen User Agent ausweichen. io Parse Mozilla/5. 36 (KHTML Oct 1, 2012 · It just means that you don't have the Facebook app installed on your phone. It is simply checking if it is the Facebook browser, by checking if the browser's user agent contains either of the given sub strings. " Version Number: Specifies the version of the browser or application. Previous: UA String used in devices before 2015. Jan 13, 2015 · The first part of the UA string-- up to the bracketed section-- is a standard iPhone. 36 (KHTML, like Gecko 2 days ago · Explore our huge user agent listing, download our user agents database, (or you can search it) if you're curious about other user agents. 0 (Linux; Android 11; 8491X_EEA Build/RP1A. katana (i. The browser is developed by Google Inc and renders web pages using the WebKit engine. 36 All of the information that was contained in the User-Agent string prior to reduction is available through the high entropy client hints, which are available by request through the User-Agent Client Hints request headers, as well as the navigator. JOYUI)" Why does it matter if a user agent is "weird"? The primary reason for caring is that normal, legitimate software doesn't usually send user agents that are "weird". The user agent string contains information about the browser version, operating system, device type, and other details that can be used to identify the client. 0 Chrome/30. 0+ Meta Web Crawlers. If the user agent string is modified, it can lead to rendering issues. For iPhone, there exists the fb:// URL scheme, but trying the I'm not sure where this url comes from, maybe it's from Android package name form the dashboard setting. 0 (Linux; U; Android 14; SM-S9010 Build/UP1A. They change, they're inconsistent, it's a brittle way to detect anything. This user agent string belongs to Chrome browser running on Android OS. xml file for the desired locale. 0 (Linux; Android 15; SM-X900 Build/AP3A. Here are two recent (September 2019) Facebook user agents, for iPhone and Android - version 238: iOS We have over 52,381 user agents for Android which you can browse and explore. Useful when troubleshooting their problems. Although it might initially seem concerning, “Katana” is simply the system-level codename for the Facebook mobile app. N: user_agent: Bolts Android 1. 4; Nexus 5 Build/BuildID) AppleWebKit/537. 106 Safari/537. net/s/GUcZGTAZ © user-agents. Click on the settings icon in the top right, and navigate to the Devices tab. Useragent Info; Mozilla/5. The strings. APK size: 76. The “com. A2; wv Mar 7, 2021 · X-Requested-With: com. S. Jan 27, 2011 · from my Android app, I would like to open a link to a Facebook profile in the official Facebook app (if the app is installed, of course). 36. The normal browser sends through POST data, but the Dalvik request just does a GET on the action url. Log In. Connect with friends and the world around you on Facebook. 0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536. A2; wv This user agent string belongs to Facebook, which is a library used to perform HTTP requests (more often, in the automatic mode as a web crawler or bot). :: return to logs :: Facebook App User Agent fragments. 30. The UA contains multiple product tokens which in theory should help to identify hardware and software of the visiting device. The User-Agent string is one of the HTTP headers meant to introduce the device requesting online content from the web server. katana in a folder; Attach an image to the facebook. To answer what is a user agent briefly, it is a string that acts on your behalf when accessing websites or internet services. com I get the following result: This screen shot and user agent confuses me because it says it's the mobile safari for iPod and iPad. You can pass the following content to the Facebook app: Aug 24, 2014 · With current version Facebook on android automatically ask user to open the app or open in chrome when you use their domain www. 190711. Most likely, the version number changed at Android 5. Get the UserAgent value using getUserAgentString(): Google Nexus 4 — Android version 5. Das Problem mit verschiedenen User Agents nachvollziehen Unten haben wir die User-Agent-Strings für die Facebook- und Instagram-Apps aufgeführt. Latest Google Pixel 8 user agents: User agent Platforms Android 15: Facebook: Mozilla/5. We'll show you what the user agent means; whether it's a popular system like Safari on iPad, Chrome on Windows, whether it's a search engine spider bot or security analysing tool. getHighEntropyValues Javascript API. 0 (Linux; Android 15; XT2303-2) AppleWebKit/537. 36 (KHTML, like Gecko) SamsungBrowser/13. Forgot password? Jan 7, 2013 · I'm trying to get user profile information Facebook. Browser; Latest Samsung user agents: User agent Android 7: Facebook Lite: Galaxy Tab A 9. Apr 17, 2025 · Learn more about User-Agents. Facebook; Facebook Audience Network; User agent Platforms Hardware; Mozilla/5. List of most popular unknown user agents of Facebook Feb 20, 2019 · From this StackOverflow post on Browser sending “Dalvik” as user agent it looks like the VM is sending the user agent string. Most requests from the Facebook app do seem to come prefixed with the browser, etc. 36 (KHTML, like Gecko) Chrome/43. Jun 23, 2015 · Fennec's user agent is also altered; but apps requesting information from the net seem to use the Dalvik VM, so I'd like to change the user-agent of the Dalvik VM as well Above explanation given, I'd like to change lines like the ones below: The document contains logs from various web browsers and devices accessing websites and apps. The Facebook App (on both iOS and Android) contains a number of known and unknown fragments. 0 (Linux; Android 9; SAMSUNG SM-T825) AppleWebKit/537. NET runtime versions. 0 (platform; rv:geckoversion) Gecko/geckotrail Firefox/firefoxversion Mozilla/5. 4? If you want to share this page, use the following short URL: https://user-agents. Uses of User Agent Strings. List of most popular Android user agents of Samsung. Open a new tab in Google Chrome. 0 is the general token that says that the browser is Mozilla-compatible. 231005. 25 This user agent string belongs to Facebook App browser running on Android OS. 36 (KHTML, like Gecko User Agent string provide information on application type, operating system, software vendor / version and layout rendering engine. Aisling Arundle - 17 Apr 2025 This user agent string belongs to Facebook App browser running on Android OS. 1;; WOW64) AppleWebKit/537. 0 Mobile/10A5376e Safari/8536. List of most popular Application user agents of Facebook. It looks like this: shareIntent. So if you are really concerned with weeding out "bad" traffic, checking the is_weird and is_weird_reason_code fields is a great way to get a better idea about the software sending the request. Create 4 new custom devices using the user agents listed above. 4 (KitKat) and earlier. 1 (KHTML, like Gecko) Version/4. 016; wv) AppleWebKit/537. 79MB | Last Updated: May 9, 2025 A user-facing website that gives your visitors all the info about their browser, OS, and device. It is a wrapper for the User-Agent-Database of user-agent-string. UserAgents. List of most popular Android user agents of Facebook. 请遵循下方“Android Studio”一节中列出的步骤。 Maven. 0 (Linux; U; Android 10; SKR-H0 MIUI/V11. 0 (Linux; Android 14; SM-A536B Build/UP1A. Start using @gonetone/google-play-api in your project by running `npm i @gonetone/google-play-api`. indexOf() checks for the position of a sub-string in a string. Application- Facebook App Facebook App Feb 3, 2016 · Hi, was trying to detect Facebook Native Application browser and it doesn't seem to pick it up, or at least the test strings I can find. Mar 17, 2015 · I want to detect facebook app from android OS using user-agent string, is that achievable. Obligatory disclaimer: user-agent strings are usually the wrong answer. Please fix this as soon as possible. When people log into your app with Facebook they can grant permissions to your app so you can retrieve information or perform actions on Facebook on their behalf. Dec 26, 2012 · In my opinion to count the Hit from various User Agent on base of Android Device you should make one URL pointing to server. FLAG_ACTIVITY_NEW_TASK); shareIntent. 0 (X11; Linux x86_64) AppleWebKit/537. 011; wv) AppleWebKit/537. It is basically a string of characters that identifies the web browser and operating system of the device being used to access the website. Don’t rely on the USER AGENT string decoder is a powerful online tool that plays a crucial role in deciphering the information embedded within a browser's user agent string. Begins loading, I click to confirm permission to send my profile, again, continue loading but eventually get empty fields. Latest Android 13 user agents: User agent Browser Hardware; Mozilla/5. 007; wv) AppleWebKit/537. They also come with a slew of other X- headers. Mobile : 2015 and later released devices, and Android 5. messenger. The build number on the user-agent is the one for the custom Android used by the vendor for that device. The client_user_agent is required for website events shared using the Conversions API. 0+ BROWSERS. 26 (KHTML, like Gecko) Version/6. Do not hash. There are no other projects in the npm registry using @gonetone/google-play-api. Latest Android 14 user agents: User agent Browser Hardware; Mozilla/5. 15-b917dc User-Agent: Tsom/OfraHaza (Life is short and love is always over in the morning) AnotherProduct Nov 24, 2021 · Other User-Agent strings. You can override strings in the Facebook SDK for Android can by providing a translation in your own strings. 0 (Linux; Android 13; CPH2495 Build/SP1A. What Is a User Agent? A browser's user agent string (UA) helps identify which browser is being used, what version, and on which operating system. e. Every time you visit a webpage, your browser sends a user agent as part of the HTTP request header. If you’re attempting to differentiate between the WebView and Chrome for Android, you should look for the presence of the Version/X. Facebook SDK for Android. Are there unique user-agent strings for different devices for facebook app. 0 (iPad; U; CPU iPhone OS 5_1_ For more on Firefox- and Gecko-based user agent strings, see the Firefox user agent string reference. 0 Lollipop updated devices (with the small number of exceptions) TV : Tizen SmartTV Web Browser 2015 and later. (In case anyone wondered: One of the three is actually Greenland, not Denmark-- as was the desktop user who made the original FB post. Below is cur May 25, 2010 · View on Facebook Page (Opens in a new tab) View our Youtube Page (Opens in a new tab) How is a user agent string handy on your own Android unit? Tell us your site-specific tips in the comments. The user agent for the browser corresponding to the event. Generally speaking, you shouldn't make your the entire user agent something like MyExampleBrowser/4. I am trying to use the Android share intent to post something on facebook. But when i checked the request headers i saw something unusual, there were two user agents from the same device. 240905. The core argument for using an in-app browser (instead of the user's default browser) is to keep users in the app and to enable closer app integration patterns (like "quote from a page in a new Facebook post"), while making others harder or even impossible (like "share Latest Facebook Lite user agents: User agent Platforms Hardware; Mozilla/5. WhatIsMyBrowser. 90. The Facebook SDK for Android enables people to sign into your app with Facebook Login. Write the function in Utilities or anywhere suit for you. Latest version: 1. katana. Apr 30, 2012 · User-agent strings (as all request headers) are not to be trusted at all, but I recommend www. Latest Android 15 user agents: User agent Browser Hardware; Mozilla/5. Facebook Login for Android - Quickstart. Dec 20, 2022 · Other information: Some user agent strings may also include additional information, such as the language of the browser or the name of the browser’s manufacturer. User-Agent(UA) String Examples. A list of user agents from facebook messenger. 0 (Linux; Android 10; NEO-AL00 Build/HUAWEINEO-AL00; wv This tool will make the User-Agent string human-readable by parsing. 0 (Linux; Android 4. For historical reasons Dec 24, 2023 · The distinction between 'Facebook Katana' and 'Facebook' is akin to an internal reference versus an external presentation. In the starting of application get User Agent and send to your server. The devices are accessing websites and apps using browsers like Chrome Access Google Play by logging in and making requests as an Android device!. katana which appear to be legitimate. The browser is developed by Google Inc and renders web pages using the Blink engine. 0 (Linux; Android 15; GPJ41) AppleWebKit/537. User agents SHOULD include this field with requests. When a web browser makes a request for website pages, it includes an HTTP header known as the [User Agent], which is a relatively short line of text containing specific details about the browser's specifications. Application- Facebook App Facebook App Dalvik/2. This page lists the User Agent (UA) strings that identify Meta’s most common web crawlers and what each of those crawlers are used for. 0 (Linux; U; Android 9; SM-G950U Build/PPR1. Similarly, if a user is logged in, Dalvik will try a GET on a permission based page, which may redirect it somewhere else because there's no session for it. Every vendor has a different way to define this build version string, it can be only numbers or alpha numeric characters. I've been trying to find a parser or regex that will give me the Android OS version from a user agent string. 220624. 011) Is this for Addition / Removal? Addition Removal Keep a watch on this one Did the User-Agent request robots. 1; fr-fr; Desire HD Build/FRG83D) AppleWebKit/533. 0″; defaults to “1. That's where WhatIsMyBrowser. Why does it matter if a user agent is "weird"? The primary reason for caring is that normal, legitimate software doesn't usually send user agents that are "weird". facebook” part of the name indicates it is an app from Facebook, while “katana” is likely a codename that was used during the development of the app internally at Facebook. katana on your iOS or Android device is entirely normal. 0 Jan 15, 2018 · As I understand it, Dalvik is the - now, discontinued - process of VM in Android versions 4. Publish as the app that opens the facebook. 0+ DEVICES. May 9, 2025 · Meta description for Facebook app download page. The term "user agent" can also refer to the software making the request itself, such as a web browser, mobile app, or bot. Of course, my aandroid is live from a long time ago. User-Agent strings don't necessarily follow the same format. User agent strings consist of multiple parts, each offering specific information. As an additional advantage to pulling from web view, you can use this from any thread (not just the UI thread). P. 2357. My feeling is it would be better to leave the browser/version as empty strings in this example. Is there a better way to get the info I need other than the User-Agent string? I would not say it is a better or worse way, but another way to detect user agents is the client-side use of JavaScript to collect informations about the User-Agent and submitting it via hidden Jul 9, 2020 · Finding com. java Jun 30, 2024 · What is a User Agent? In simple terms, a user agent (UA) is a line of text that identifies the client software accessing a website. The most common useragents list is compiled from the user logs data of a number of popular sites across niches and geography, cleansed (bots removed), and enriched with information about the device and browser. 015. If you're looking for more information on User-Agents, be sure to read these posts on the DeviceAtlas blog: How User-Agent parsing works and how it can be used; List of Mobile Browser User Agents; User-Agent string Analysis; Building device databases with User-Agent strings; How to switch UA in your desktop browser @RobbNesp var us = navigator. The User-Agent header is present on every HTTP request you receive and can provide valuable diagnostic information: Browser/App/Library name; Operating system; Developer; Device type (tablet or mobile) Software type (browser, bot crawler) But every browser sends its user agent in a different format, so decoding them can be very tricky. As discussed in this Reddit thread, the cryptic nature of user-agent strings is rooted in historical practices and the evolution of web technologies. 012) This user agent string belongs to Dalvik browser running on Android OS. 1. 0 (Linux; Android 15; SM-A566B Build/AP3A. com It's better to just redirect user to this url and let facebook handle it Apr 28, 2023 · User Agent 中文名为用户代理，简称 UA，是一个特殊字符串头，使得服务器能够识别客户使用的操作系统及版本、CPU 类型、浏览器及版本、浏览器渲染引擎、浏览器语言、浏览器插件等。Python 爬虫通过伪装 UA 可以绕过某些检测。 以下为搜集的常见的各浏览器的 User-Agent，其中： If you need to determine whether your site is being viewed in DeX, you can check the user-agent string. The following examples show the default UserAgent values for Google Nexus 4 and Samsung Galaxy S9 mobile devices. 3. txt first? Oct 31, 2018 · I have been seeing issues parsing certain user agents from the Facebook app. Discover the latest Android 12 user agents and understand their features on WhatMyUserAgent. Here is an example user-agent string when the browser is in DeX mode: Mozilla/5. Jun 24, 2014 · As a consequence, the logic around the user-agent string has grown increasingly complicated over the years; the introduction of Compatibility Modes has meant that the browser now has more than one UA string, and legacy extensibility of the string was deprecated after years of abuse. 15 libwww/2. katana is the package name for the official Facebook app on Android. – Sep 21, 2016 · What is the Android Firefox user agent string? Like: iPhone: Mozilla/5. The user agent string typically includes details such as the device model, operating Jul 9, 2020 · Finding com. 200720. Even if two phones has the same Android version, the build number can be completely different. Dalvik/2. 0 (Linux; Android 13; SM-A715F Build/TP1A. 0″. Facebook for Android User-Agent string: Mozilla/5. Latest Facebook Messenger user agents: User agent Platforms Hardware; Mozilla/5. In looking at the duplicate click counts by user agent, the following user agent appears at the top of every sent message (it is the biggest offender by Sep 2, 2010 · Granted this isn't the exact same User Agent string that a webview would return, but might serve you well enough for your purposes. 4. com as a reference for helping you determine the patterns you're interested in. 44. This user agent belongs to Facebook App. The way the Facebook SDK for Android works is that whenever you need to make a request to Facebook, the SDK checks to see if the Facebook app is already installed on your device. 0 Chrome/33. User-agent strings are notoriously inconsistent in their formatting, making parsing and interpretation a headache for developers. Apr 17, 2025 · A comprehensive list of User Agent strings for the most popular devices in use today. vcime ptcseil ralu czkxiqd ooxrtf muet gudhiq drzz utfo yeikma