CenturyLink Speed Test: How It Works and How to Use It

The CenturyLink speed test is a simple and useful way to monitor and improve your internet performance and experience. It is a web-based tool that lets you measure your internet speed in seconds. By testing your speed, you can:

  • Check your download and upload speeds, which affect how fast you can stream, download, or upload files.
  • Check your latency, which affects how responsive your online games or video calls are.
  • Compare your results with your plan speed and device capabilities, which can help you decide whether to upgrade or downgrade your service.
  • Test your speed from different locations and devices, which can help you find the best spot for your router or modem.
Check CenturyLink Speed Test Online

In this article, we will explain how the CenturyLink speed test works and how to use it to optimize your internet connection.

CenturyLink Speed Test on Desktop

The CenturyLink speed test tool is a web-based tool that you can access from any device with an internet connection. You don’t need to download or install anything to use it. Here are the steps to use the tool:

CenturyLInk Speed Test Desktop
  1. Go to the CenturyLink speed test website or the CenturyLink self help website. You can also watch a video tutorial on how to use the tool on YouTube.
  2. If you are on a private network (VPN), disconnect and try again. VPNs can affect your speed test results.
  3. To test your fastest speed, connect your device directly to your modem with an Ethernet cable. If you are using WiFi, make sure you are close to your router or modem and there are no obstructions or interference.
  4. Click on the “Check your speed now” button and wait for the test to run. It will take a few seconds to measure your download and upload speeds and latency.
  5. Review your results and compare them with your plan speed and device capabilities. You can also test your speed from different locations and devices to see how they affect your performance.

CenturyLink Speed Test on Mobile

Another way to test your internet speed is to use the CenturyLink mobile app or the CenturyLink speed test website on your mobile browser. Here are the steps to use either option:

Using the CenturyLink Speed Test Website

  • Open your mobile browser and go to the CenturyLink speed test website.
  • Follow the same steps as described in the previous section.

Using the CenturyLink Mobile App

  1. Download the app from the Google Play Store or the App Store, depending on your device.
  2. Open the app and sign in with your CenturyLink username and password.
  3. Tap on the “Speed Test” icon at the bottom of the screen.
  4. Wait for the test to run and review your results.
  5. Tap on the “History” icon to compare your previous tests.

How the CenturyLink Speed Test Works

The CenturyLink Speed Test is a web-based tool that measures your internet speed in seconds. It sends a packet of information to the closest server and back. The time it takes is your ping, which affects your online responsiveness. The speed it transfers is your download and upload speed, which affects your online activities.

The speed test measures the speed to and from your device, which depends on your connection type. A wired connection is faster and more stable than a WiFi connection, which can vary based on distance and interference.

The speed test also uses multiple connections and different data sizes to test your bandwidth capacity more accurately.

The speed test connects to the nearest 14 servers hosted by CenturyLink and powered by OOKLA, a global leader in internet testing.

Can You Use the Test If You’re Not a CenturyLink Customer?

Yes, this speed test tool is free and open to anyone online. You don’t need to sign in or download anything.

However, it’s important to keep in mind that the test results may not reflect your actual internet performance if you use a different service provider. This is because the test connects to the nearest CenturyLink server, which may not be the same as your provider’s server. Therefore, the test may not account for network congestion, routing, or throttling factors that may affect your speed.

To measure your internet speed accurately, you may need to use a different speed test tool that connects to your provider’s server.


Is the Comcast Speed Test Accurate?

It depends on various factors, such as your device, your WiFi connection, your location, and your security software. The tool measures your real-time network connection to the nearest CenturyLink server, which may not be the same as your service provider’s server.

How fast should CenturyLink internet be?

It depends on your plan and location. CenturyLink offers internet speeds ranging from 15 Mbps to 940 Mbps. You can check your plan details or availability on their website.

Is 10 Mbps fast enough for Netflix?

Yes, Netflix recommends 5 Mbps for HD quality and 25 Mbps for Ultra HD quality. However, other factors such as your device, your network, and your WiFi signal may affect your streaming experience.

What is 1.5 Mbps internet speed?

It is a low-speed internet connection that can support basic activities such as browsing, emailing, and streaming music. However, it may not be enough for HD video streaming, online gaming, or large file downloads.

How fast is 25 Mbps?

It is a moderate-speed internet connection that can support multiple devices and activities such as HD video streaming, online gaming, video conferencing, and large file downloads. However, it may not be enough for Ultra HD video streaming or very high-demand applications.

What is the best CenturyLink speed?

It depends on your needs and budget. The best CenturyLink speed for you may vary depending on how many devices you have, what activities you do online, and how much you are willing to pay. You can use their speed test tool or their speed advisor tool to find out the best speed for you.