China just blocked thousands of websites

The Chinese censorship authorities have DNS poisoned *, which means all subdomains of are blocked in China. EdgeCast is one of the largest Content Delivery Networks (CDN) in the world and provides its cloud services to thousands of websites and apps in China.

We have acknowledged all along that our method of unblocking websites using “collateral freedom” hinges on the gamble that the Chinese authorities will not block access to global CDNs because they understand the value of China being integrated with the global internet. However, we can now reveal publicly that the authorities are doing just that - attempting to cut China off from the global internet.

We have seen instances of “collateral damage” due to “collateral freedom” over the past few days and have received emails from some smaller website owners wondering why their non-sensitive sites are being blocked by the great firewall.

What's going on?

The disruption to EdgeCast’s service was noted by the company on their website on November 14, 2014, although we noticed a problem on November 12 and the first poisoning on the 13th. The company's status update still appears on their site:

Please be advised, we are experiencing issues with content delivery in the China region due to suddenly increased restrictions imposed by the Chinese Government. If you are receiving reports from end users not able to view content from within China, please contact our network Operations center to discuss the options available to you.

Screen Shot 2014-11-17 at 12.26.20.png

Some of the recent victims of collateral damage, all EdgeCast clients, include:

Sony Mobile’s global and Chinese sites are both blocked.

The Atlantic will, sadly, not be able to claim that their website was blocked due to the aggressive nature of their reporting on China.

The project website of Drupal ( is blocked. Drupal is used as a back-end framework for many websites worldwide. Administrators of those websites in China will face disruptions when trying to update Drupal or install extensions.

Firefox browser add-ons are another victim. Firefox's is hosted on EdgeCast. Firefox users in China will not be able to install any add-on for Firefox.

Gravatar is used by many websites to show profile images. The images are hosted on EdgeCast and any website that uses Gravatar in China will be displaying broken images. Here is what a typical Chinese user will see when accessing those websites.

Other blocked websites include and It is hard to tell what websites may be affected because different sites might have different elements (i.e. images) that rely on EdgeCast. Anybody who appears on the EdgeCast customer list is potentially affected. Some client names appear in the screenshot below.



The great firewall (GFW) is attempting to block access to our collateral freedom mirror sites, which are hosted in the global cloud infrastructure. GFW cannot distinguish traffic to our mirror sites and other traffic to the cloud provider which means that they cannot block access to our mirror sites without blocking access to the all sites hosted by the CDN. We are forcing the authorities to make a decision between allowing uncensored access to the global internet or blocking global CDNs all together, which will come at a significant economic cost.

In the case of EdgeCast, the authorities have chosen to block access to their service altogether and as a result, they have taken down tens of thousands of websites in one foul swoop. The blocking of such a considerable number of websites in one instance will likely result in significant economic loss as many businesses will be impacted.

EdgeCast was recently acquired by Verizon, whose board directors include senior executives from companies that have made significant investments in China including Royal Dutch Shell, Proctor & Gamble and Deere & Company.

If the authorities did not anticipate what damage the blocking of EdgeCast would inflict, they have likely been alerted by the many companies that use EdgeCast in China. This action comes at a bad time for the Chinese authorities. This week, they are hosting the World Internet Conference and the blocking of EdgeCast will likely be a hot topic of discussion. We call on the Chinese authorities to lift the restrictions on EdgeCast immediately.


EdgeCast removed the status update on its website, but have published a blog post about their current problems in China: 

We have been hearing from our CDN and Monitoring partners throughout the industry and our own customers that more sites, CDNs and networks are being filtered or blocked by the Great Firewall of China. This week we’ve seen the filtering escalate with an increasing number of popular web properties impacted and even one of our many domains being partially blocked… with no rhyme or reason as to why.

At Verizon EdgeCast we have put policies in place to help our customers mitigate the effects of this most recent filtering but expect this to be an ongoing issue for our customers seeking to reach Chinese users (users in China). For any customers who are seeing their delivery impacted, please log in to your EdgeCast portal. Here you will find instructions on your portal home page on how to best mitigate filtering or blocking.

For those of our customers who are frustrated by this, we share your frustration, as does the whole content delivery and hosting industry. Rest assured that we stay committed to work with our global ISP partners and do our best to mitigate the effects of these filtering policies to ensure a clear path to your users and customers in China.



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Mon, Jun 10, 2019

Apple Censoring Tibetan Information in China

Apple has a long history of censorship when it comes to information about Tibet. In 2009, it was revealed that several apps related to the Dalai Lama were not available in the China App Store. The developers of these apps were not notified that their apps were removed. When confronted with these instances of censorship, an Apple spokesperson simply said that the company “continues to comply with local laws”.

In December, 2017, at a conference in China, when asked about working with the Chinese authorities to censor the Apple App Store, Tim Cook proclaimed:

"Your choice is: do you participate, or do you stand on the sideline and yell at how things should be. And my own view very strongly is you show up and you participate, you get in the arena because nothing ever changes from the sideline."

In the ten years since Apple was first criticized for working with the Chinese authorities to silence already marginalized voices, what has changed? Apple continues to strictly follow the censorship orders of the Chinese authorities. When does Tim Cook expect that his company will help to bring about positive change in China?

Based on data generated from, Apple has now censored 29 popular Tibetan mobile applications in the China App Store. Tibetan-themed apps dealing with news, religious study, tourism, and even games are being censored by Apple. A full list of the censored apps appear below.

Thu, Jun 06, 2019

Report Shines Spotlight on Apple’s Censorship Practices in China

The newest Ranking Digital Rights Corporate Accountability Index makes recommendations on what companies and governments need to do in order to improve the protection of internet users’ human rights around the world. Ranking Digital Rights (RDR) works to promote freedom of expression and privacy on the internet by creating global standards and incentives for companies to respect and protect users’ rights.

In their 2019 Accountability Index, RDR looks at the policies of 24 of the world’s most important internet companies in respect to freedom of expression and privacy and highlights the companies that have made improvements and those companies that need to do more. RDR notes that:

Insufficient transparency makes it easier for private parties, governments, and companies themselves to abuse their power over online speech and avoid accountability.

In particular, the report highlights how Apple has abused their power over online speech, and notes instances of this in China. According to the report, Apple has not disclosed data around the content that it removes from its App Store when faced with requests from the government authorities.

While [Apple] disclosed data about government requests to restrict accounts, it disclosed no data about content removal requests, such as requests to remove apps from its App Store. Apple revealed little about policies and practices affecting freedom of expression, scoring below all other U.S. companies in this category.

The report makes intelligent and sensible recommendations for governments. However, the recommendations also highlight how difficult it is to have these discussions with governments like China’s.

Thu, Nov 30, 2017

About those 674 apps that Apple censored in China

Apple opened the door on its censorship practices in China - but just a crack.

Tue, May 23, 2017

Is China establishing cyber sovereignty in the United States?

Last week Twitter came under attack from a DDoS attack orchestrated by the Chinese authorities. While such attacks are not uncommon for websites like Twitter, this one proved unusual. While the Chinese authorities use the Great Firewall to block harmful content from reaching its citizens, it now uses DDoS attacks to take down content that appears on websites beyond its borders. For the Chinese authorities, it is not simply good enough to “protect” the interests of Chinese citizens at home - in their view of cyber sovereignty, any content that might harm China’s interests must be removed, regardless of where the website is located.

And so last week the Chinese authorities determined that Twitter was the target. In particular, the authorities targeted the Twitter account for Guo Wengui (, the rebel billionaire who is slowly leaking information about corrupt Chinese government officials via his Twitter account and through his YouTube videos. Guo appeared to ramp up his whistle-blowing efforts last week and the Chinese authorities, in turn, ramped up theirs.


Mon, Dec 12, 2016

China is the obstacle to Google’s plan to end internet censorship

It’s been three years since Eric Schmidt proclaimed that Google would chart a course to ending online censorship within ten years. Now is a great time to check on Google’s progress, reassess the landscape, benchmark Google’s efforts against others who share the same goal, postulate on the China strategy and offer suggestions on how they might effectively move forward.

flowers on google china plaque

Flowers left outside Google China’s headquarters after its announcement it might leave the country in 2010. Photo: Wikicommons.

What has Google accomplished since November 2013?

The first thing they have accomplished is an entire rebranding of both Google (now Alphabet) and Google Ideas (now Jigsaw). Throughout this blog post, reference is made to both new and old company names.

Google has started to develop two main tools which they believe can help in the fight against censorship. Jigsaw’s DDoS protection service, Project Shield, is effectively preventing censorship-inspired DDoS attacks and recently helped to repel an attack on Brian Krebs’ blog. The service is similar to other anti-DDoS services developed by internet freedom champions and for-profit services like Cloudflare.

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Is it possible to use alternate DNS, or do they block it?

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