Type unblockyoutube.co into the address bar.
Here's a step-by-step overview of how UnblockYouTube Co works:
Several browser extensions are specifically designed to unblock YouTube. These extensions, such as "Unblocker for YouTube" on the Chrome Web Store, claim to provide secure and unsurveilled access to YouTube even if it is blocked by your network administrator. These are generally more convenient than web proxies because they integrate directly into your browser.
: Many modern network administrators actively block these proxy sites as they are seen as security risks or "workarounds" to established policy.