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Reasons and Optimization Methods for Slow Access of Chinese Mainland to American Servers
Time : 2025-05-28 14:05:36
Edit : Jtti

American servers are suitable for Chinese mainland enterprise users to meet the needs of cross-border e-commerce business, overseas market expansion, etc. However, users from the Chinese mainland may encounter problems such as slow speed, high latency and unstable connection when accessing servers in the United States, which seriously affects user experience and business efficiency. The main reasons for this situation and the optimization methods are shared in the following text!

First of all, geographical distance is the fundamental factor causing access delay. The physical distance between China and the United States is relatively far. Data needs to pass through multiple relay nodes during transmission, which increases network latency. In addition, cross-border data transmission may also be affected by factors such as the limitation of international export bandwidth and the capacity of submarine optical cables, further exacerbating the decline in access speed.

Secondly, the quality of the network line is an important factor affecting the access speed. Ordinary international network lines may have problems such as route detour, high packet loss rate and bandwidth congestion, resulting in low data transmission efficiency. In contrast, the adoption of optimized network lines, such as CN2, GIA and other direct connection lines, can significantly enhance the stability and speed of data transmission. According to relevant data, the average latency of American servers using the CN2 GIA line can be reduced to 130-160ms, which is significantly better than that of ordinary lines.

Thirdly, server performance and configuration can also affect access speed. If the hardware configuration of the server is low, its processing capacity is insufficient, or the server load is too high, it will lead to an extended response time and affect the user's access experience. In addition, the network environment and bandwidth resources of the data center where the server is located will also have an impact on the access speed.

In response to the above problems, the following are some commonly used optimization methods:

Accelerate with CDN: Content Delivery Networks (CDN) deploy nodes around the world to cache website content on the server closest to the user, reducing the distance and time of data transmission and improving access speed. For example, the use of CDN can distribute content to multiple nodes around the world, improving the user access experience.

Select an optimized network line: As mentioned earlier, servers that adopt optimized lines such as CN2 and GIA can significantly enhance the stability and speed of data transmission. When choosing a server provider, one should pay attention to the types of network lines it offers and give priority to those with optimized lines.

Optimize DNS resolution: By using a fast and stable DNS resolution service, the time for domain name resolution can be reduced, and the total time users spend visiting the website can be shortened. In addition, rationally configuring DNS resolution strategies, such as resolving by region, can also help improve access speed.

Optimize website content and structure: Reduce the size of web pages, optimize large files such as images and videos, and use compression technologies (such as GZIP) to decrease the amount of data transmitted and improve loading speed. In addition, adopting the HTTP/2 protocol, using WebP format images, setting browser caching, etc., can also help improve the access speed of the website.

Using load balancing: By applying load balancing technology, user requests are distributed across multiple servers to avoid single-point overload, thereby enhancing response speed and system availability.

Deploy accelerators and optimization tools: Deploy caching technologies such as Varnish and Redis to reduce access requests to the server and improve the response speed of the website. Furthermore, the use of congestion control algorithms such as TCP BBR can also improve the efficiency of data transmission.

In conclusion, there are many reasons for the slow access to US servers from the Chinese mainland, such as geographical distance, network line quality, and server performance.​ In practical applications, multiple optimization strategies should be comprehensively applied based on specific circumstances to achieve the best access effect.

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