Dotcom-Monitor Launches Browser-Driven Great Firewall of China Test

Dotcom-Monitor announced the immediate availability of a unique online tool that tests the performance of websites from behind the "Great Firewall of China".

Online PR News – 21-March-2012 – – Dotcom-Monitor, (, today announced the immediate availability of a unique online test tool that tests the performance of websites from behind the "Great Firewall of China". Originating from Shanghai, China the test essentially answers the question: "What does my website look like for someone who browses to it from China (behind the firewall)?"

The "Great Firewall of China" is a filtering project is operated by the Ministry of Public Security (MPS), a division of the government of the People's Republic of China.

The test (available here
utilizes an Internet Explorer browser that originates from Shanghai, China and travels to the target website. The website monitoring test is free and determines if a website (or specific elements of a website) are filtered out by the "Great Firewall of China."

Currently the "Great Firewall of China" filters out many well known URLs, including,, etc...These URLs and others are also commonly included as third-party components of many other websites. As a result of "the Great Firewall of China" queries to filtered URLs originating from within Shanghai, China will result in the error message "Access Denied: You don’t have permission to access "http(s)://" on this server."

Instant Worldwide Performance Test
The instant browser test also tests from 18 other worldwide locations making it the most comprehensive worldwide browser-driven testing tool on the internet. To try it go here:

The instant worldwide browser test uses Dotcom-Monitor’s browser-based UserView Monitoring™ platform. "The Great Firewall of China test is an absolutely free service that provides a snapshot of a website’s speed and performance and whether the website, or aspects of a website, are being filtered" said Vadim Mazo, founder and chief technical officer of Dotcom-Monitor, "It helps website administrator’s see their website as it appears for users originating from within the Great Firewall of China. As a result of this Great Firewall of China test website administrators can make informed decisions about their website design." To try the test

For more information, contact Brad Canham at Dotcom-Monitor, 1-888-479-0741, or email at sales (at)

About Dotcom-Monitor
Dotcom-Monitor is a worldwide external monitoring solution that reduces the risk of downtime and performance issues that impact an organization’s online bottom-line revenues and reputation. It brings together Monitoring, Reporting, Notification, Escalation and Analysis in the combination best suited to your needs. To learn more about UserView Monitoring™, user experience, website monitoring, network monitoring, and server monitoring services, as well as web load stress testing services go to