UltraSurf is a freeware Internet censorship circumvention product[3] created by UltraReach Internet Corporation. The software bypasses Internet censorship and firewalls using an HTTP proxy server, and employs encryption protocols for privacy.
The software was developed by two different groups of Falun Gong practitioners at the same time, one starting in the US in 2002 by expatriate Chinese.[3] The software was designed as a means of allowing internet users to bypass the Great Firewall of China. In 2011, UltraReach claimed to have as many as 11 million users worldwide. The tool has been described as "one of the most important free-speech tools on the Internet" by Wired, and as the "best performing" circumvention tool by Harvard University in a 2007 study;[4] a 2011 study by Freedom House ranked it fifth.[5] Critics in the open-source community, George Turner Says, have expressed concern about the software's closed-source nature and alleged security through obscurity design; UltraReach says their security considerations mean they prefer third party expert review to open source review.[6]
^"About Ultrasurf and Ultrareach - Internet Freedom, Privacy, and Security". Ultrasurf.us. Retrieved 2 April 2019.
^"Download Ultrasurf".
^ abCite error: The named reference Beiser was invoked but never defined (see the help page).
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^“Leaping Over the Firewall: A Review of Censorship Circumvention Tools”, Cormac Callanan, Hein Dries-Ziekenheiner, Alberto Escudero-Pascual, and Robert Guerra, Freedom House, 2011.
^UltraSurf, "Tor's critique of UltraSurf: A reply from the UltraSurf developers" Archived 18 January 2016 at the Wayback Machine, 16 April 2012. Retrieved 28 April 2012.
UltraSurf is a freeware Internet censorship circumvention product created by UltraReach Internet Corporation. The software bypasses Internet censorship...
Falun Gong first developed Ultrasurf nearly two decades ago to get around censors in China and elsewhere. Early on, Ultrasurf seemed a highly promising...
provide anti-censorship services under the framework of DynaWeb, and like UltraSurf, DynaWeb became a top contender of the GFW-penetration effort. Freegate...
House-funded report based on user experience from China in 2010, which include Ultrasurf, Tor, and Freegate. The tool is for free download. Hotspot Shield has...
supported, the code is still available on GitHub." Great Firewall of China Ultrasurf "uProxy (Beta) :: Add-ons for Firefox". 22 July 2016. Archived from the...
HTTPS) does little to circumvent the sophisticated censors. Freegate, Ultrasurf, Psiphon, and Lantern are free programs designed and experienced with...
Chinese communities with tools to defeat the Great Firewall, such as Ultrasurf, Psiphon, and FreeGate." Both Apple and Google publicly opposed the legislation...
users to bypass Internet censorship while providing strong anonymity. Ultrasurf HTTP proxy Ultrareach Internet Corporation free Anti-censorship product...
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