Cross-border Network Acceleration Solutions for China - Rahi
Cloud Services

Cross-border Network Acceleration Solutions for China

By Pablo Puig

June 16, 2023 - 6 min

Cross-border Network Acceleration Solutions for China

For many international businesses with a presence in China, network stability issues are often the biggest concern when their users or employees in China try to access services based in other countries and regions.

Their users and employees outside China are satisfied with the access to the services, but the users in China don’t get consistent and/or good performance. For users in China, access is usually slow and unstable, discouraging employees and users from working properly.

This is quite common with SaaS applications like O365, Salesforce, and Zoom.

The Great Firewall (GFW)

Public internet connectivity in mainland China is strictly regulated by the government, with sweeping laws banning various types of content and sites and ongoing traffic filtering. Policies are enforced by the Great Firewall (GFW).

Public internet bandwidth to and from China is limited and restricted. Sometimes is very good and sometimes very bad depending on multiple factors such as time and demand. For example, during peak hours the networks are overwhelmed, restricting the bandwidth and affecting directly the user experience. In fact, the problem is that you cannot predict the bandwidth that is going to be available, it is actually unpredictable.

In addition to the bandwidth, the Chinese Firewall is also causing a high packet loss rate, high latency, and in general poor performance as randomly some requests are filtered or even censored.

GFW controls and filters access based on the following variables:

  • Blocking of URLs and IPs (such as Google or Facebook)
  • Alteration of DNS requests
  • Applications (such as TOR)
  • Keywords
  • Other Variables-IPs, technologies, and other parameters not publicly disclosed
  • Note that the GFW only applies to mainland China. Although Hong Kong, Taiwan, and Macau are part of China, they are currently largely exempt from these regulations being outside the control of the GFW.

    GFW policies can change without notice, and, at any given moment, certain traffic can either be blocked entirely or discouraged by throttling bandwidth.

    We have observed that major events like elections, holidays, and political events within China cause erratic behavior concerning performance and consistency of application reliability before, during, and after such events.

    Observations Regarding Traffic from China to International Destinations

    While providing services in China, we have observed several behaviors of traffic originating in mainland China toward international destinations, especially during business hours:

  • Certain ports, protocols (IPsec, GRE), or IPs are unreachable – At times, or in general, certain international destinations become unreachable from mainland China but are reachable from other locations. All attempts to involve local Chinese carriers result in no feedback or inconclusive responses with no real resolution.
  • Certain applications slow down during peak business hours – We have observed applications hosted outside of China by providers like Amazon, Akamai, Google Cloud, Microsoft Azure, or others performing poorly at times while performing well from other locations. We have been able to correlate some of these incidents to the overall political climate in China and abroad and engagements between the Chinese telcos and the particular cloud provider.
  • Rahi’s Cross-border Network Acceleration Solutions

    We provide cross-border network acceleration solutions in mainland China for international businesses. We are familiar with the challenges related to public internet network connectivity and performance in mainland China. Based on our experience we have created solutions and best practices to provide the required cross-border network connectivity in mainland China.

    We are committed to our customers’ successful network transformation, and we provide various connectivity options for organizations with locations in mainland China to enable access to international websites and SaaS applications for their users in mainland China. Our cloud-based solutions empower you with reliable, cost-effective, easy-to-implement, and secure connectivity in China.

    What is Cross-Border Networking Acceleration?

    Cross-border networking acceleration is a technology that optimizes the performance of digital services hosted outside of their primary user locations. In essence, it’s a bridge that enables businesses to serve their clients seamlessly, irrespective of geographical boundaries. Our service targets explicitly websites, SaaS applications, Salesforce, Zoom, and O365 applications hosted outside of China, improving their speed and reliability for users within China.

    Why do Businesses Need Acceleration Solutions?

    Businesses with digital services hosted outside of China often face challenges like latency issues, packet loss, and connection instability. These issues can lead to slower response times, poor user experiences, and ultimately, a loss of business. Moreover, applications like Salesforce, Zoom, and O365 are integral to many businesses, and any performance issues can significantly affect productivity. This is where our cross-border networking acceleration service proves invaluable.

    Advantages of Our Cross-Border Networking Acceleration Service

    Our service offers a myriad of benefits to businesses. Here are a few key advantages:

  • Improved Performance: Our service optimizes the speed and reliability of your digital services, ensuring a smooth and efficient user experience.
  • Enhanced Productivity: By improving access to key applications like Salesforce, Zoom, and O365, we help boost your business’s productivity. No more frustrating lags or connection issues during important meetings or customer interactions.
  • Better Customer Satisfaction: A fast and reliable online experience can significantly enhance customer satisfaction, helping you retain existing clients and attract new ones.
  • Compliance with Regulations: If you’re a business operating digital services in China, our service ensures that you comply with local regulations, saving you from potential legal issues.
  • Conclusion

    A robust online presence is key to business success in today’s digital age. Our cross-border networking acceleration service ensures that your digital services are fast, reliable, and compliant with regulations. Boost your performance, productivity, and customer satisfaction with us. Get in touch with us today to learn more about our cross-border connectivity solutions.


    • Pablo is an IT professional specializing in cloud computing technologies for the past 7 years. With a special focus into the China market and the Chinese technologies, he has been supporting international businesses on their cloud journey to China. Pablo has received multiple awards and recognitions from AWS, Alibaba Cloud, and Tencent Cloud for his knowledge and success delivering solutions to customers.

    , Global Director of Cloud Solutions

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