#Deployment slots

Implementing a dynamic robots.txt

Firstly you might want to know why would you want to implement a dynamic robots.txt? Isn't it better to just put a static file in the web app? Yes it is but when you running your application on certain platforms like web apps in Azure when you using deployment slots. I found this handy link which explains deployment slots quite nicely , but basically what happens is when you switch 2 slots Azure will do a virtual IP switch so traffic from your slots will now be switched (not the files from each slot).