Hello Moz Community.
I have a question about 404 crawl errors in WebmasterTools, a while ago we had an internal linking problem regarding some links formed in a wrong way (a loop was making links on the fly), this error was identified and fixed back then but before it was fixed google got to index lots of those malformed pages. Recently we see in our WebMaster account that some of this links still appearing as 404 but we currently don't have that issue or any internal link pointing to any of those URLs and what confuses us even more is that WebMaster doesn't show anything in the "Linked From" tab where it usually does for this type of errors, so we are wondering what this means, could be that they still in google's cache or memory? we are not really sure.
If anyone has an idea of what this errors showing up now means we would really appreciate the help. Thanks.
