I am not sure if this is the right section but i am having a serious problem with my Scrapebox Free Link Checker Software. When i bought backlinks for my Youtube Videos or websites i usually use this software to check if these links have my website on them or if the link is valid. However recently i notice i have been getting some 404, 500, 600 errors even though these link are live and have my website link on them. Have anyone experienced this problem? How do i fix this problem? Is there an alternative to check bulk links like this software?