Reduce Initial Server Response Time | TTFB

Server Response Time (SRT) is a crucial metric that quantifies the duration between a web client sending a request and the server providing a response to that particular request. This essential parameter is measured using a unit called Time to First Byte (TTFB), which denotes the time taken for the web browser to receive the first byte of data in response to its initial request. The TTFB metric is expressed in milliseconds and plays a significant role in assessing the performance and efficiency of web servers, aiding in the identification of potential bottlenecks and areas for improvement to ensure a smoother and more responsive user experience.

How to improve server response times?

How to Reduce Server Response Time in WordPress

When a user initiates a page request, it is imperative that the request be promptly dispatched to the server, prompting the server to generate a suitable response and efficiently transmit the necessary page resources. To optimize performance and enhance user experience, it is advisable to strive for a server response time below the 200ms (milliseconds) threshold. Fortunately, there exists a plethora of strategic approaches to bolstering server response times, encompassing optimization of code and database operations, effective utilization of caching mechanisms, implementation of content delivery networks (CDNs), resource compression, adept load balancing, judicious server configuration, prudent minimization of redirects, incorporation of asynchronous processing, and vigilant monitoring and analysis of server performance. Embracing these techniques ensures that your web platform will deliver swift and seamless user interactions, thereby maintaining heightened user satisfaction. Some of the key ones are:

  1. Choose Your Web Server Carefully
  2. Utilize a Content Delivery Network (CDN)
  3. Implementing server-side caching
  4. Optimize Your Database
  5. Minify and combining external files

Choose Your Web Server Carefully

Use a reliable and fast web hosting is essential to maintain fast server response times that do not fluctuate. To achieve that, it is necessary to invest in a high-performance server. So, ensuring that you are using a reputable and optimal hosting provider is important. Unfortunately, each web server configuration differs from another, so there's no generalized solution for optimizing a web server. Investing a little bit of time in the beginning, will pay off later as you are better able to handle changes in your server needs. When choosing between different hosting provider packages, check for online reviews and recommendations for providers that can maintain a fast server response time that is also stable.

Utilize a Content Delivery Network (CDN)

A Content Delivery Network (CDN) strategically deploys servers at interconnection points among various networks, ensuring widespread geographical coverage to facilitate swift content delivery to users. The key advantage of a CDN lies in its capacity to efficiently and expeditiously distribute content. By geographically dispersing servers, a CDN reduces latency and minimizes data travel time, resulting in faster loading times and improved user experience when accessing web content.CDN performance optimizations can be broken into three categories:

  1. Distance reduction
  2. Hardware/software optimizations
  3. Reduced data transfer

These ensures all web page visitors enjoy fast response times. The majority of technology companies including companies like Google, Apple and Microsoft use CDNs to reduce latency in loading web page content.

Implementing server-side caching

The objective of server-side caching is to maintain a cached copy of a page readily available on the server. This involves serving a pre-generated version of the requested page instead of processing and generating it from scratch upon each request. By employing server-side caching, websites can significantly reduce response times and server load, leading to faster page loading for users. To take advantage of this caching mechanism, it is advisable to inquire with your web hosting provider about their object caching offerings. In many cases, enabling object caching is as simple as requesting your host to enable it, resulting in notable performance improvements for your website.

Optimize Your Database

What is server response time and how to improve it?

In most scenarios, when your website executes a query, the server accesses the database to generate the required response. Over time, redundant data can accumulate in the database, potentially leading to difficulties in retrieving information efficiently. Slow queries represent a primary culprit behind sluggish server responses, making it crucial to proactively identify and address potential bottlenecks. Prior to investigate into query optimization techniques, such as logical or physical optimization, it is essential to carefully assess the cost, processing power, and overall benefits of each approach. As databases expand in size, database searches can become more extensive, necessitating tailored optimization methods to suit the specific characteristics of each database. By considering these factors and adopting appropriate optimization strategies, website owners can effectively mitigate slow query issues and maintain responsive server performance.

Minify and combining external files

When your web page is loaded, the retrieval of JavaScript and CSS files depends on their location and quantity present on the site. Consequently, a higher number of JavaScript or CSS files will require the server to fetch them more times, potentially affecting server response time.

Minification refers to the process of reducing the size of code by eliminating redundant and lengthy variables, unwanted characters, and comments. This optimization technique significantly enhances overall page performance by reducing the page load time. Combining multiple scripts into a single file during minification can yield even greater savings. Additionally, by consolidating multiple files into one, the number of HTTP requests needed is reduced to just one, further improving page loading speed. Employing minification and concatenation methodologies can effectively streamline web page loading and enhance user experience by ensuring faster and more efficient content delivery.

Tools To Test and Improve Server Response Time

If you want to be sure your site is up to standard, there are many ways to check your server's speed and performance.

  1. GTmetrix
  2. KeyCDN
  3. Pingdom
  4. Google Page Speed Insights
  5. Web Page Test

Summing Up: What To Do Now

Once the issues are resolved, you must continue measuring your server response times and address any future performance bottlenecks.

  1. Gather and inspect existing performance and data.
  2. Identify and fix top performance bottlenecks.
  3. Monitor and alert for any future performance regressions.


To reduce the initial server response time, optimize web server configurations, minimize database queries, and employ caching mechanisms. By streamlining server processes and enhancing data retrieval efficiency, you can significantly improve website performance and provide users with faster response times.