Although you may no longer play on zelda30tribute.com, you can play it off a localhost webserver or your own webserver.
Download the www/ folder and all of its contents. Start up a local webserver and open index.html in a browser.
Upload the www/ folder and all of its contents to your FTP server, then open index.html in a browser.
This is released under the MIT License (see License.txt).
The Zelda 30 Year Tribute project launched in April 2015. It got a bunch of press coverage and saw half a million unique visitors in 3 days. Nintendo shut the site down with a DMCA complaint (no action was taken against the authors, GitHub, or other hosting websites). So we took it down and open sourced it here. Enjoy!