This page displays your User Agent and Screen Resolution. This is a very basic output of the User Agent also referred to as simply UA. Your User Agent tells every site your visit what browser you're using. Sites are able to detect your UA and redirect to a more fitting page for your browser if desired. In other words, if you go to a site with this detection in place from a mobile phone the site might detect you are a mobile user via the UA and redirect you to their mobile site if available. This doesn't work on all sites becuase not all sites have UA detection in place. We have it built in to WIMI.com. We detect MOST mobile phones and redirect them to our mobile page however, if you go to WIMI.com from a desktop computer, you'll get redirected to the What Is My IP homepage.

UAs also tell the sites you're visiting some browser related software which you may have installed. For example, this UA (Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB6; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; InfoPath.2; .NET CLR 3.5.21022; .NET CLR 1.1.4322; .NET CLR 3.5.30729; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.30729) tells us that the visitor is using Internet Explorer 8, Windows NT 6.0 (Vista), has Media Center PC 5.0 installed, Office Live Connector, etc. So if we had a special section for Vista users, we could redirect this person based on the Windows NT 6.0 string to a sub section in our site related strictly to Vista. This UA on the other hand, Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729) tells us the visitor is using FireFox 3.5.3 and Windows NT 6.0 (Vista). Not much else.

Having the knowledge from above, User Agent Spoofing is used by many programmers that don't want people to know how they're getting to the site(s). Some programmers will find legitimate UAs and program their script to use such UAs. UAs can be blank, or contain custom information like a URL to a site that might promote a particular browser or script.

Screen Resolution is just for gee whiz info. This is the size of your desktop and not your browser window.

• WIMI Forum

• Internet Speed Test

• IP Address Lookup
• IP WHOIS Lookup
• Host Name Lookup
• User Agent Info
• Server Headers Check

• How To Change Your IP
• How To Trace An Email
• What Is An IP Address
• IP Address Management
• What Is DHCP
• DOS / Windows IP Commands
• Linux IP Commands
• UNIX IP Commands
• Why Does WIMI Show A Different IP Than IPConfig
• How To Determine If Your Computer Is Being Assigned The External IP
• What's The Difference Between A Static IP And A Dynamic IP
• What Is A MAC Address
• What Is MAC Cloning
• Router Support

Recent Forum Posts

Problem with porf forwarding, help please
Hello, I've tried to forward my port. When I type 192,168,1,1 , nothing appears. Can somebody help me, please
Home network, multiple "routers"
I'm trying to tweak my home network, but something just isn't working properly. Here's what I'm trying to do: VPN router connected to ISP...
Connection drops to local after 1 second
I have posted this on many other sites to no avail hopefully somebody on here can help. Have looked at hundreds of posts cant find a fix, have...
Same IP through cable router
Hello to all members! I've been using whatismyip for quite some time now and it has never failed me. Recently I've switched over to...
Ping loopback
Let me explain the topology first. I have 2 routers directly connected named R1 and R2. Please see below for the config of the same. I have not...