I've tested the online version of your tool, It stops on 500 URLS and show a message about it (allthorught I can see the first 500). I've bought the paid version, instaled it and executed. It's only detecting 483. At first I see it's not "indexing" word or pdf files (no extension excluded on the config screen) but I'm not sure if the docs and pdfs are the only missing.
The site is [external links are visible to admins only] and the sitemap is [external links are visible to admins only]
Thank you for your help.