Google Proxy Checker I built this software to check proxies against Google. The process is simple : the software will take one proxy, try to launch a query on Google.com and finally check if results are shown or not. If results are shown, so the proxy will be identified as Valid. If results are not shown but the Google captcha page, proxy will be identified as IP Blocked (Captcha). If no results, no captcha or timeout, the proxy will be identified as Invalid. The process is simple and accurate. Results can be really differents from ScrapeBox proxy checker, I don't know why and I don't know how the ScrapeBox proxy checker works exactly. Features : Fast & multithreaded Detect blocked proxies (captcha) Anti-crash (auto-save during checking) Light & portable application (700Kb) Max threads : 500 Max timeout : 90 sec Free for BHW ! VirusTotal : Code: Result 1/42 due to the EXE packer (PECompact). https://www.virustotal.com/file/f6cad8e953244af8a82fb4b5f1f26cdaf59657e23ece78dba6c46fcd4f0c9e1b/analysis/1347218924/ Download : Code: https://dl.dropbox.com/u/8492265/GoogleProxyChecker_1.0.zip Beny PS : The application icon is the ugliest icon around the world.