This tools helps generate URL sequences. A simple method creating url with sequential number / alphanumeric part from single base url.
Ranges are defined by square brackets ([ & ]). For example to generate the range 1,2,3 you would use [1,3] and to generate the range 100,102,103,104,105 you would use [100,105]. You may also pass a step: [100,200,20] = 100,120,140,160,180,200.
Alphanumeric range [aaa, aad] will create aaa,aab,aac,aad sequences.
Runs through all of the urls generated, check for dead link. See the percentage complete, the number of good, blocked and dead links.