How to watch YouTube ad-free for free?

Enduring unskippable double ads before and during every video completely ruins the YouTube viewing experience. However, not everyone can afford a recurring monthly subscription just to remove advertisements.

Skipping logical ad insertions within the video stream

YouTube serves ads injected directly into the video stream. AdBlock Network intercepts the ad loader. To keep the perimeter firewall updated, the software performs asynchronous, read-only requests to multiple independent endpoints, blocking requests from ad-serving domains at the Address layer without interfering with the original video stream.