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System: Searchable Directory of User Agents: Browser Extensions

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The following is a directory of user agents, including their source and general purpose as far as we can determine. Most entries link to an "official" site containing more detailed information. You can also paste a UA from your logs into the form below, hit [Go!] and see a list the relevant agents.

We currently have 946 distinct user agents in our database representing everything from search engines to software components and spambots. These have been collected from our log files over a number of years and researched manually.

Search for User Agent

To use this form just copy and paste an entire User-Agent string from your server log file into the input box and then submit the form. The search is case-sensitive so "nokia" will not match "Nokia".

Most user agent strings now contain a number of separate components so the search will return a list of everything that has a match in the database.

Analyse UA:

Browser Extensions

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Browser extensions are programs that change or enhnace your web browser. Some of them also collect data by sending information on your browsing habits back to a central server.

1) Advanced Browser - www.avantbrowser.com/
Avant Browser is a fast, stable, user-friendly, versatile multi-window browser.
2) afcid - www.hotspotshield.com/
Hotspot Shield keeps your Internet connection secure and anonymous on public networks.
3) amzn_assoc - pages.alexa.com/associates/
4) AskBar - www.askbar.com/about.cfm
askBAR was created to provide a community where members could draw upon each other to find answers on any topic imaginable.
5) Avant Browser - www.avantbrowser.com/
Try Avant Browser, an upgrade to Internet Explorer. Avant Browser is a fast, stable, user-friendly, versatile multi-window browser.
6) Beamer
7) Bookmark Buddy - www.bookmarkbuddy.net/
Bookmark Buddy is an invaluable companion to surfing the Net and navigating your programs and documents.
8) Bookmark Renewal Check Agent - www.bookmark.ne.jp/
9) Check&Get - activeurls.com/
Check&Get is handy and powerful bookmark manager and web monitoring program that lets you organize your browser bookmarks, check your favorite Internet pages and detect if their contenthas changed or has become unavailable.
10) ClariaBot - www.claria.com/
A.K.A. Gator. Pop-up advertisements spontaneously appear on a personal computer screen when accessing the Internet.
11) Crazy Browser - www.crazybrowser.com/
Crazy Browser has the ability to open multiple sites and windows inside a single browser task. It also has a Smart Popup Filter - it blocks all the annoying popups automatically!
12) Deepnet Explorer - deepnetexplorer.com/
Deepnet Explorer offers fully integrated P2P file sharing capabilities and a built-in RSS/ATOM news reader.
13) Diamond - www.claria.com/
A.K.A. Gator. Pop-up advertisements spontaneously appear on a personal computer screen when accessing the Internet.
14) DiamondBot - www.claria.com/
A.K.A. Gator. Pop-up advertisements spontaneously appear on a personal computer screen when accessing the Internet.
15) Enigma - www.suttondesigns.com/
Enigma Browser incorporates a large collection of powerful features.
16) FCP Browser - www.kenstone.net/fcp_homepage/basic_browser.html
17) Feedreader - www.feedreader.com/
Feedreader is a freeware Windows application that reads and displays Internet newsfeeds aka RSS feeds based on XML.
18) FirePHP - www.firephp.org/
FirePHP enables you to log to your Firebug Console using a simple PHP method call.
19) Flock - www.flock.com/
This preview ain't for the faint of heart!
20) FunWebProducts - www.funwebproducts.com/
FunWebProducts applications come with the MY WEB SEARCH browser plugin - a customizable browser toolbar which provides users with access to search results from the best search engines on the internet.
21) FurlBot - www.furl.net/
Furl is a free service that saves the important items you find on the Web and enables you to quickly find them again.
22) Google Desktop - desktop.google.com/
Google Desktop is a desktop search application that gives you easy access to information on your computer and from the web.
23) GoogleToolbar - toolbar.google.com/
24) GreenBrowser - www.morequick.com/indexen.htm
25) GTB5 - toolbar.google.com/
Google Toolbar
26) Hotbar - hotbar.com/
Hotbar is comprised of two components: A Smart Browser Toolbar and an Email Toolbar.
27) Hot Lingo - www.hotlingo.com/
Hot Lingo delivers form and applet spell checking directly to Internet Explorer.
28) MSIECrawler - msdn.microsoft.com/workshop/delivery/offline/linkrel.asp
To provide users with the best browsing experience, Microsoft&tm; Internet Explorer 4.0 introduced offline browsing to the Microsoft Win32 platform. Internet Explorer 5 extends offline browsing, supporting "smarter" offline Favorites.
29) MultiZilla - multizilla.mozdev.org/
MultiZilla was the first browser extension to introduce the Tabbed UI for mozilla. MultiZilla still has lots of extra features that cannot be found in todays mozilla builds.
30) NetCaptor - www.netcaptor.com/
NetCaptor is the original tabbed browser. NetCaptor lets you block popups, securely delete private data, block ads, and much more.
31) NSPlayer - www.microsoft.com/netshow/
32) PeoplePal - home.peoplepc.com/peoplepal/
PeoplePal Toolbar
33) Powermarks - www.kaylon.com/power.html
Browser independent bookmarks, use the same collection with multiple browsers.
34) silk - www.slider.com/toolbar.html
The Slider Toolbar works only with Internet Explorer and requires a Windows Operating System.
35) SiteBar - sitebar.org/
Online Bookmarks in Any Browser
36) Sleipnir - www20.pos.to/~sleipnir/software/sleipnir/
37) SlimBrowser - www.flashpeak.com/sbrowser/sbrowser.htm
SlimBrowser is a tabbed multiple-site browser.
38) Smart Explorer - www.smarteque.com/
Smart Explorer kills popup ads, filters multimedia downloads, has multiple web browsing windows, and integrates the top search engines, allowing for searches of multiple sites at once.
39) StumbleUpon - www.stumbleupon.com/
We are a community-based, word-of-mouth approach to websurfing - pages you "stumble upon" come from like-minded people who share your interests.
40) UCmore - www.ucmore.com/
UCmore is an unobtrusive Internet navigational tool that simplifies and organizes your web browsing by showing you relevant information when you need it.
41) YComp - companion.yahoo.com/
Yahoo! Companion is a free, personalisable toolbar.
42) Y!TunnelPro - www.ytunnelpro.com/
This program provides additional features to Yahoo! Messenger

For more information on the user agents listed you can click on the associated link. If you think any of the information here is incorrect or misleading please let us know using the Feedback link below.

Please be aware that we do not add user agents to the database on request, but rather wait to see them in our log files.

Browse User Agents by Category

Browser Extensions (42)
Browser extensions are programs that change or enhnace your web browser. Some of them also collect data by sending information on your browsing habits back to a central server.
Content Management (13)
Data Collection - Commercial (47)
These are sites that collect information for commercial benefit. As far as we are aware no useful information or reports are provided to the public.
Data Collection - Research (29)
These agents are conducting research on the WWW. They may also offer commercial services.
Devices (23)
Mobile phones and other gadgets with browser technology.
Download Managers (39)
Programs that enable users to download or extract information from a website or web server.
Indexing Tools (50)
This is software that enables local or remote indexing of web pages and other content for the purposes of setting up a search engine.
Link Checking Utilities (41)
This is software that conducts remote or local link checking.
Media Players (5)
Applications for playing music, video and other media over the Internet.
Other Resources (12)
Links to online resources relating to robots and spiders.
Proxies (7)
If several clients request the same content, the proxy can deliver that content from its cache, rather than requesting it from the origin server each time.
RSS/Atom Aggregators (43)
These are browser extensions or search spiders that focus on indexing or aggregating RSS and Atom feeds.
Search Engine Spiders (220)
These agents conduct Internet-wide indexing for various search engines.
Server Platforms (6)
Server Software (31)
Site Monitoring Services (15)
Software Components (58)
These are code libraries or application development packages that can be used to build Internet-related applications. How they are used depends on the developer.
Spambots? (45)
These are programs that are used predominately to harvest email addresses, find open guestbooks to post to, etc. They may also have legitimate uses.
Unclassified (174)
The following user agents have either not been identified or do not fit neatly into other categories. New agents appear every day that have limited lifespans. Most (but not all) legitimate user agents identify themselves with a URI or email address.
Validation Tools (10)
These are programs and sites that can be used to validate various aspects of your site: HTML, CSS, META tags, etc.
Web Browsers (36)

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