Issues with pres-spz-us-west-1.sdl.tridion.sdlproducts.org access could stem from improper redirect settings between different versions of the site. Check the following links for alternative routes:

http://pres-spz-us-west-1.sdl.tridion.sdlproducts.org https://pres-spz-us-west-1.sdl.tridion.sdlproducts.org

Or return to the current status page of pres-spz-us-west-1.sdl.tridion.sdlproducts.org.