We created a new collection and ran a walk and in the Walk Status it had 441 pages fetched, 4103 errors and 39 duplicates. Minutes later we ran the walk again and the Walk Status now lists 439 pages fetched, 4073 errors and 38 duplicates. I am wondering what would make such a difference in a short amount of time.
Walk differences
Walk differences
Webserver responsiveness (or lack thereof) usually.