Latency - Brief definition

Latency refers to the time it takes for a data packet to travel from an end device to a web server and back. This delay is measured in milliseconds (ms), can affect numerous web applications, and should be kept as low as possible.

If there is a noticeable delay between an input and the expected reaction in an online game or other applications, there is likely an unusually high latency. You can take action to remedy this.

What is Latency?

Latency refers to the time it takes for a data packet to travel from your device to a web server and back. This time is measured in milliseconds (ms) and affects numerous web applications. Low latency – also known as ping – indicates a shorter delay and a smoother browsing experience.

"Ping" is often used synonymously with latency. A ping test measures latency and determines the time span between sending a data packet and receiving a response. Ideally, this should be between 5 and 30 ms . For comparison, a human blink lasts on average between 100 and 150 ms.

For more information, common latency times in home networks, and answers to the most important questions on the topic, please read our Guide on Latency.

Keep latency low – with Powerline and Ethernet (LAN)

If you notice particularly high latency, it may be that the response time via WiFi is too high. In this case, you would be well advised to switch to an Ethernet connection (LAN) – preferably in effective combination with Magic Powerline from devolo, if you do not want to lay annoying cables throughout your living space.