Github cannot be used in China. Is it blocked?

With the popularity of the Internet, more and more people are beginning to use various Internet applications for communication, work, and study. Among them, GitHub is a well-known version control and collaboration program designed to allow developers to track code modifications, collaborate on development, conduct code reviews, etc. However, many users have reported that GitHub is inaccessible in mainland China, which has led many people to speculate: Is GitHub blocked?

First of all, we need to make one thing clear: At present, GitHub’s access situation is unstable in China. Meanwhile, some users say they are able to successfully access GitHub, while others believe GitHub has been blocked entirely. It is important to note that due to China's policy of restricting Internet content, it may become part of the so-called "Great Firewall of China." Therefore, the question of whether GitHub is blocked is not easy to answer.

Whether GitHub is blocked is a complicated question, because by trying to access the website, you may get many different responses, such as timeout, DNS resolution failure, connection refused, etc. In order to determine whether GitHub is blocked, we need to check whether the website has DNS resolution problems or TCP connection problems. However, it is quite difficult to do this in practical situations. Therefore, we can only obtain information through other channels.

According to data from some reliable third-party websites, access to GitHub in China has become unstable. According to Github's Status website, since 2013, the speed of domestic access to Github has not been very satisfactory. Some Chinese netizens have also complained that although some users can successfully access GitHub, many cannot access GitHub, so they can only access GitHub with the help of a virtual private network.

Currently, there is a lot of evidence that China's Great Fire Wall has added GitHub to the blocked list, which means that GitHub has been blocked. Although many people commented that they cannot access Github, according to a lot of data on domestic open source development projects that need to use Github, GitHub still has a large user group in China. In addition, GitHub is also widely used in China among developers, scientific research institutes, etc.

In short, it is not easy to know whether GitHub is blocked from the existing data and circumstances. However, many user feedback indicates that currently accessing GitHub in China has become difficult and unstable. China has just implemented new network security regulations, stipulating that violations can be fined up to 300,000 yuan. Therefore, China's use of GitHub may be more and more limited for a long time to come.

Although many people in the technical community believe that the wall is a flash in the pan, one day Github can be liberated from the wall, and we need to work hard for this. At the same time, developers, engineers, and scientific research institutions should not give up using GitHub just because access is restricted in China. They should share and choose other convenient similar tools and platforms as much as possible. After all, the Internet is an important means to achieve global communication and collaboration. No attempt at a wall can prevent global trust, candor and cooperation.

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