try prime.amazon.com also clear your browser history. try another browser.
Today My Amazon.com stopped loading. I got a message:
This site can’t provide a secure connectionwww.amazon.com sent an invalid response.
Try running Windows Network Diagnostics.
ERR_SSL_PROTOCOL_ERROR
I use this site every day, and have never had any troubles with it. Is there any way to fix this?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic