Just in time for the expected increase in traffic to coincide with the release of Drupal 8, all the content and files on Drupal.org have been migrated to Fastly!
Joshua Mitchell (joshuami), CTO of the Drupal Association, just posted this great writeup a few days ago:
We are so stoked to announce our partnership with Fastly. Fastly is now serving up all of our traffic from the *.drupal.org domain Drupal sites and related services.
Fastly will be at the Drupal 8 Release Party: Los Angeles this Thursday to demonstrate their real-time CDN, how to integrate it with Drupal (both Drupal 7 & Drupal 8 are supported), and to answer any of your questions.
Their presentation will be streamed via Zoom. Please be sure to have Zoom installed and stay tuned to @GLADrupal on Twitter for the video conferencing information.

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Video conference info for Fastly's presentation TONIGHT!
Here's the video conference info for tonight's presentation by Rogier "Doc" Mulhuijzen from Fastly, the real-time CDN that *.drupal.org migrated to earlier this week.
Topic: Drupal 8 Release Party: Los Angeles
Time: Nov 19, 2015 7:00 PM (GMT-8:00) Pacific Time (US and Canada)
Join from PC, Mac, Linux, iOS or Android: https://glad.zoom.us/j/283539268
Or join by phone:
The video from Doc's
The video from Doc's presentation, Fastly + Drupal, is now available for your enjoyment!
https://vimeo.com/146440504