Post by account_disabled on Dec 26, 2023 21:32:26 GMT -6
When it comes to the overall speed of our sites , we often tend to focus on performance and front-end optimizations to improve page loading speed . However, sometimes it's best to move to the server side, where the site starts loading. Today we will analyze in depth how TTFB (time to first byte) affects the performance of your site and we will discover together some simple solutions to reduce it. TTFB is an often overlooked performance factor, yet it should be taken into account whenever you test your site's speed. What is TTFB? Is TTFB important? How to measure TTFB 4 Ways to Reduce TTFB on Your Site What is TTFB TTFB stands for time to first byte . Simply put, it is the measure of how long the browser has to wait before receiving the first byte of data from the server. The longer it takes to receive this data, the longer it takes to view your pages.
A common mistake is that TTFB is calculated after DNS resolution time , however the Country Email List initial TTFB calculation in network communications always includes network latency . This involves a 3-step process and delays and latency can occur at any step of the process, thus increasing the overall value of the TTFB. Waiting for TTFB Waiting time (TTFB) 1. Request to the server When someone visits your site, first an HTTP request is sent from the client (the browser) to the server. At this stage there are several factors that can generate delays. Slow DNS resolution times can contribute to increased request time. If the server is located in a geographically distant location, latency can be introduced in the distance that the data must travel. Additionally, if complicated firewall rules are in place, these can increase routing times. And let's not forget the client network speed. 2. Server processing After sending, the server must process the request and generate a response.
This could lead to a variety of delays, such as slow database calls , too many third-party scripts to execute, missing the first response cache , bad code, or failure to optimize the theme and server resources, such as disk I/O and memory. , inefficient . 3. Response to the client When the server has processed the request, it must respond to the client (or rather return the first byte). This transmission is strongly influenced by the network speed of the server and client . If the client has a slow Internet connection from a Wi-Fi hotspot, this will be reflected in the TTFB. Is TTFB important? It is important to understand that TTFB (time to first byte) does not correspond to site speed. It's actually a measure of responsiveness. There is a lot of discussion online about whether TTFB is important or not. Some say it's not relevant Cloudflare , LittleBizzy , and others say it's important Ilya Grigorik , Web Performance Engineer at Google.
A common mistake is that TTFB is calculated after DNS resolution time , however the Country Email List initial TTFB calculation in network communications always includes network latency . This involves a 3-step process and delays and latency can occur at any step of the process, thus increasing the overall value of the TTFB. Waiting for TTFB Waiting time (TTFB) 1. Request to the server When someone visits your site, first an HTTP request is sent from the client (the browser) to the server. At this stage there are several factors that can generate delays. Slow DNS resolution times can contribute to increased request time. If the server is located in a geographically distant location, latency can be introduced in the distance that the data must travel. Additionally, if complicated firewall rules are in place, these can increase routing times. And let's not forget the client network speed. 2. Server processing After sending, the server must process the request and generate a response.
This could lead to a variety of delays, such as slow database calls , too many third-party scripts to execute, missing the first response cache , bad code, or failure to optimize the theme and server resources, such as disk I/O and memory. , inefficient . 3. Response to the client When the server has processed the request, it must respond to the client (or rather return the first byte). This transmission is strongly influenced by the network speed of the server and client . If the client has a slow Internet connection from a Wi-Fi hotspot, this will be reflected in the TTFB. Is TTFB important? It is important to understand that TTFB (time to first byte) does not correspond to site speed. It's actually a measure of responsiveness. There is a lot of discussion online about whether TTFB is important or not. Some say it's not relevant Cloudflare , LittleBizzy , and others say it's important Ilya Grigorik , Web Performance Engineer at Google.