I'm working on integrating a payment system with paypal in C#, and I installed the official paypal nuget package. Then I went to the paypal github site.
And linked to this below site (SDK Reference).
At this point both Chrome and Firefox warned me about
Deceptive Site Ahead
Is this site really dangerous?
URL's are listed here so that people don't need to click on potentially dangerous links:
https://github.com/paypal/PayPal-NET-SDK
http://paypal.github.io/PayPal-NET-SDK/Samples/PaymentWithPayPal.aspx.html