I've been using Stackify's Prefix offering to help identify bottlenecks in both new and legacy websites. The ability to see SQL queries along with the various web requests is an absolute god send. When you find that request that should be using a cache but is smashing the database, those problems get solved so easily with Stackify.

By far one of the best and easiest to use profiling tools I've ever used. Most of the other tools are either too hard to setup or don't give me what I want. Prefix shows me exactly what I need to see on one screen, exceptions, SQL queries from EF, and load times. It has become a tool I use daily for software development.

Prefix allows us a quick view of how all of our web apis are behaving and if there any unexpected errors or performance issues we need to address. Using it in conjunction with Retrace provides even deeper insights without slowing down our production code.

This is by far the most wonderful bug tracking and fixing tool I have ever used. Prefix helped solve a lot of performance issues in my project and helped me meet my deadlines.

Excellent tool for finding bugs and bottlenecks in .NET web applications. You can easily find out what is slowing down your application and improve it.