[resf]

Decaying in more than one way. The JS files on milliondollarhomepage.com start with:

    /*
         FILE ARCHIVED ON 5:47:20 Aug 6, 2015 AND RETRIEVED FROM THE
         INTERNET ARCHIVE ON 20:45:17 Aug 24, 2015.
         JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE.
    
         ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C.
         SECTION 108(a)(3)).
    */

I guess someone didn't keep backups?

[TazeTSchnitzel]

Oh, so that's why the Twitter follow button has archive.org as the referer!

[haser_au]

Either that, or the homepage owner doesn't want to pay the hosting (bandwidth) costs, so he/she just references the Way Back machine. This is kinda brilliant.

[cornstalks]

That doesn't seem to be the case:

  curl -v http://www.milliondollarhomepage.com/index_files/widgets.js

returns an HTTP 200 (not a 301/302). Additionally, the comment says:

  /*
     FILE ARCHIVED ON 5:47:20 Aug 6, 2015 AND RETRIEVED FROM THE
     INTERNET ARCHIVE ON 20:45:19 Aug 24, 2015.
     JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE.

     ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C.
     SECTION 108(a)(3)).
  */

Note the dates. It was archived on Aug 6, 2015 and retrieved just 18 days later on Aug 24, 2015. Given it's 2017, there's no way this file is being served directly from archive.org's servers.

[Jaruzel]

The '/index_files/' bit seems to imply someone went to the internet archive, pulled up milliondollarhomepage, and then in a Browser, did 'Save As Webpage Complete' which saves the main page (in this case index.htm) and all its assets in a sub folder called 'index_files'.

They then just copied it all as-is back into some web hosting.

[voltagex_]

Or just a way to shore up dependencies