I am a Software QA for 3 years, however, I only experienced manual testing which I act the role as end-user in the application (front-end and back-office), I am now hired in other company which I am only the SQA, this is the first time there hire a SQA.
I noticed that there's an error in their web application which cannot replicated by manual testing. I'm sure that automation testing will be the solution to do stress testing in the website, however, I have no idea regarding automation testing, I need your help
Can anyone suggest a (stress) testing tool for ASP.net/C#? and how will I use the tool?