Any Proxy checker tool please?

[WWWmaster]

Hey guys,
Would like to choose a reliable Proxy checker solution and need your help.
I'd like to detect if I am using a proxy server or not.
I found whatismyip site and they offer this solution.
Have you ever used them before?

Thanks.

 

[Victorvictories]

Here are some popular proxy checker tools:

1.ProxyChecker
2.GatherProxy
3.ProxyMesh
4.Proxy Scrape
5.Charlik's Proxy Checker

Note: Some of these may be paid tools, you may need to verify if they suit your needs.