I've tried a few different "proxy testing" software programs, and it's odd how they all have very different results for the same list of proxies. The tester that comes with Scrapebox seems to be the most professionally written and has the best filter options, so I'm ASSUMING it's one of the better ones. Do others agree, or is there something better? I'm a bit confused as to why I can test a proxy 10 to 20 times, and on the last test it suddenly fails with the message "Proxy leaks your IP". That seems odd to me -- why would it NOT leak my IP 10 to 20 times, then suddenly decide to do that? Thanks for any insight you can provide!