I'm recieving a different page from looking at their "How to" page on the subject but it is also offline.
https://serverservices.intel.com/warsersec/GenerateLicenseKey.html
The date was recent for the last review so this hasn't completely fallen by the wayside
How to Activate Features for Intel(r) Modular Servers
Last Reviewed: 08-Jun-2016
Article ID: 000007271