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Is there an application or a way to tell whether when browsing sites, etc that I am going through a proxy? I have looked at the various settings in my browser e.g. Internet Explorer 8, Firefox 16+, etc an there are no proxy settings defined.

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up vote 2 down vote accepted

If it's a transparent proxy, you won't be able to detect it on the client PC.

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If you have a transparent proxy, IP detection sites will not be able to tell in case there's a proxy sitting in-between.

Instead, you can do the following:

  • Check your external IP using a site like What Is My IP.

  • Run ipconfig /all, if you're connected without a router:

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  • Check your router IP, if you're connected through a router:

enter image description here

If your local/router IP does NOT match the IP on the "What Is My IP" site, then you have a proxy in-between.

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Thanks. What if I don't have access to the router? – PeanutsMonkey Nov 15 '12 at 0:06

use a protocol analyzer like wireshark, check to make sure that the IP address being contacted is the same as the DNS address for the site you are trying to reach. you can determine the DNS address using the 'nslookup '. if they are not the same, then your connection is likely being routed through another entity.

share|improve this answer and Will do some proxy testing --they are not 100% accurate but they may help.

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