http://www.technologyreview.com/new...s-an-unfixable-hole-in-chinas-great-firewall/ It's not really unfixable, just harder. Also, it doesn't help with sites that don't use big league content delivery networks like Akamai. Basically they have a way of asking the content delivery network for pages so that it doesn't look like you're reading Facebook. China could probably reverse engineer that, know what you're really doing, and block that. Other places, like Iran, will probably be slower to patch for that.
https://www.cachebrowser.info/#/ CacheBrowser is a system designed to help Internet users bypass Internet censorship. The core idea of CacheBrowser is to grab censored content cached by Content Delivery Networks such as Akamai and CloudFlaredirectly from their CDN edge servers, therefore, foiling censors' DNS interference.
Yeah, but how long would it take a government with a good team to duplicate the technique, and start blocking on what you're really reading? This is a Short Duration Access Hack or ShorDurAccHack.