Netpeak Spider operates on billions of pages and comes with many pre-installed filters for detecting potentially severe problems with your website. You may also single out many of the following: first, you can begin crawling on one computer, then save the project and move it to another computer or laptop. Multi-windowing allows you to crawl multiple websites at the same time. Furthermore, comprehensive dashboards are created in the process of crawling that are not easily available among competitors with more expensive options. The benefit is that you can quickly view all the problems and essential settings on one dashboard.