I have been trying to find a good way to filter out working proxies but keep usable proxies. The thing that really bothers me is the constant Error (IP Blocked) error in the scrapebox proxy tester. I know there is a filter button that says "Remove error, but keep blocked IP" but whenever I press that, it removes all error proxies including "Error (Blocked IP)". I wanted to see if these blocked IP error proxies are really erroneous so I loaded one up into firefox and I am actually using it now to post this and browse the internet. It is pretty damn fast and I even tried going to Google and it loaded right up. If it were easier to keep these Blocked IP proxies or distinguish them from proxies that really are erroneous, each scan I would have three+ times as many good proxies left. I see several possible solutions: 1) Make the "Remove error, but keep blocked IP" button work correctly. 2) An option to test proxies with a site other than Google Perhaps someone can chime in with a possible solution or more info. I have my scrapebox updated to the latest version and I still see no easy way to keep the blocked IP proxies. Also, I am using the old proxy checker. P.S. I know that if Google is blocking the proxy's IP then it would potentially be no good for scraping but it would still be fine for posting...and in this test, the proxy that errored out as IP Blocked was able to access Google with no problems.