GreatFire (GreatFire.org; Chinese： 大火) is a non-profit organization that monitors the status of websites censored by the Great Firewall of China and helps Chinese Internet users circumvent the censorship and blockage of websites in China. The website also hosts a testing system that allowed visitors to test in real time the accessibility of a website from various locations within China. The organization's stated mission was to "bring transparency to the Great Firewall of China."
|Motto||Bringing Transparency to the Great Firewall of China|
|Purpose||Advocacy against Internet censorship in China|
GreatFire has worked with BBC to make the Chinese-language BBC website available to users in China, despite it being blocked by the Great Firewall, by using a method known as collateral freedom that mirrored content on widely used content delivery networks, such as Amazon CloudFront and CloudFlare, so that it would be too economically costly for censors to block. The organization has since set up similar mirror sites for other blocked websites, such as Google and the New York Times, with a directory of links hosted on GitHub, which is currently not accessible in China.
GreatFire has been targeted with distributed denial-of-service attacks that attempt to take down the website by overloading its servers with traffic. In April 2015 it was targeted by a Chinese attack tool named Great Cannon that redirected massive amounts of Internet traffic to servers used by GreatFire.
A sister site FreeWeibo （Chinese：自由微博） monitors and makes available content from leading Chinese microblogging site Sina Weibo that has been censored and deleted by Chinese authorities under the Great Firewall.
- "When did GreatFire.org launch?". GreatFire.org. Retrieved April 10, 2015.
- "Do you make money?". GreatFire.org. Retrieved April 10, 2015.
- Biggs, John (March 19, 2015). "Anti-Censorship Service Greatfire Is Under Attack". TechCrunch. AOL Inc. Retrieved April 10, 2015.
- Unknown (March 20, 2015). "Chinese anti-censorship group Greatfire.org suffers massive hack". The Guardian. Guardian News and Media Limited. Retrieved April 10, 2015.
- Boehler, Patrick (March 20, 2015). "Hackers Attack GreatFire.org, a Workaround for Websites Censored in China". The New York Times. The New York Times Company. Retrieved April 10, 2015.
- "Online Censorship In China - GreatFire". GreatFire.org. Retrieved April 10, 2015.
- Robinson, David; Yu, Harlan; An, Anne. "Collateral Freedom - A Snapshot of Chinese Internet Users Circumventing Censorship" (PDF). Open Internet Tools Project. Archived from the original (PDF) on 2013-07-01. Retrieved 28 December 2016.
- Meyer, David (November 24, 2014). "BBC uses "collateral freedom" system to bypass Chinese censorship". GigaOM. Gigaom, Inc. Retrieved April 10, 2015.
- Wilson, Mark (November 25, 2014). "GreatFire.org and BBC punch uncensored news through the Great Firewall of China". BetaNews. BetaNews, Inc. Retrieved April 10, 2015.
- Newman, Lily Hay (November 25, 2014). "The BBC Is Working With a Transparency Group to Bring Uncensored News Into China". Slate. The Slate Group LLC. Retrieved April 10, 2015.
- "GitHub: greatfire/wiki". Retrieved April 10, 2015.
- Russel, Jon (March 30, 2015). "These Activists Are Plotting To End Internet Censorship In China". TechCrunch. AOL Inc. Retrieved April 10, 2015.
- Perlroth, Nicole (April 10, 2015). "China Is Said to Use Powerful New Weapon to Censor Internet". The New York Times. The New York Times Company. Retrieved April 10, 2015.
- "不受屏蔽的「自由微博」". Deutsche Welle. 2013-05-17. Retrieved 2013-10-25.
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