Web Server Push To Client

What is Web Server Push To Client?

Web Server Push To Client, also known as server push or HTTP/2 server push, is a technology that allows web servers to send resources to the client before the client requests them. This proactive approach helps improve website performance and user experience by reducing the latency between the client’s request and the server’s response.

How Does Web Server Push To Client Work?

When a client makes a request to a web server, the server can analyze the requested page and its resources to determine which additional resources the client might need. The server can then push those resources to the client’s browser, even before the browser has requested them. This is achieved through the use of HTTP/2, the latest version of the HTTP protocol.

The Benefits of Web Server Push To Client

Web Server Push To Client offers several benefits for both website owners and users. Here are some of the key advantages:

1. Faster Page Load Times

By proactively pushing resources to the client, web server push reduces the number of round trips between the client and the server. This results in faster page load times, as the client doesn’t have to wait for each resource to be requested and downloaded separately.

2. Improved User Experience

With faster page load times, users can access the content they need more quickly, enhancing their overall experience on the website. This can lead to increased engagement, lower bounce rates, and higher conversion rates.

3. Reduced Network Latency

Web server push helps reduce network latency by minimizing the time it takes for the client to request and receive resources from the server. This is particularly beneficial for users with slower internet connections or when accessing websites from remote locations.

4. Bandwidth Savings

Since the server can send multiple resources in a single push, web server push can help conserve bandwidth. This is especially useful for mobile users who may have limited data plans or for websites with heavy resource requirements.

5. Enhanced Caching

Web server push can also improve caching efficiency by ensuring that the client has the required resources readily available. This reduces the need for subsequent requests, as the client can retrieve the pushed resources from its cache instead of making additional round trips to the server.

Implementing Web Server Push To Client

To implement web server push, you need to have an HTTP/2 enabled server and a compatible client browser. Most modern web servers and browsers already support HTTP/2, so you may only need to enable it if it’s not already active.

Once you have an HTTP/2 enabled server and client, you can configure the server to push resources by including the appropriate headers in the server’s response. These headers inform the client which resources should be pushed and when.

It’s important to note that not all resources are suitable for server push. Generally, you should only push critical resources that are required for the initial rendering of the page. Pushing too many resources or unnecessary ones can actually degrade performance.


Web Server Push To Client is a powerful technology that can significantly improve website performance and user experience. By proactively pushing resources to the client, web server push reduces latency, enhances caching, and ultimately speeds up page load times. Implementing web server push requires an HTTP/2 enabled server and a compatible client browser. As website owners, it’s crucial to carefully analyze and select the resources that should be pushed to ensure optimal performance.

Overall, web server push is a valuable tool for optimizing websites and staying ahead in an increasingly competitive online landscape.

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