Internet Speed Test
What is FAST.com measuring? FAST.com speed test gives you an estimate of your current Internet speed. You will generally be able to get this speed from leading Internet services, which use globally distributed servers.
Internet Speed Test
Why does FAST.com focus primarily on download speed? Download speed is most relevant for people who are consuming content on the Internet, and we want FAST.com to be a very simple and fast speed test.
How are the results calculated? To calculate your Internet speed, FAST.com performs a series of downloads from and uploads to Netflix servers and calculates the maximum speed your Internet connection can provide. More details are in our blog post.
What can I do if I'm not getting the speed I pay for? If results from FAST.com and other internet speed tests (like dslreports.com or speedtest.net) often show less speed than you have paid for, you can ask your ISP about the results.
An internet speed test measures the connection speed and quality of your connected device to the internet. It does so by running multiple consecutive tests that analyze different aspects of your internet connection, namely ping (latency), download speed, and upload speed. Each of these values represents the connection's specific qualities, which you can read more about in the paragraph after the next. This should give you a clue on how to understand the final speed test results. But before we get to these, we first want to discuss how to perform each test.
To speed test internet performance for downloading data the test is performed by opening multiple connections to a server and simultaneously starting the download of a large data file on all connections. This approach ensures that the entire bandwidth of the internet connection is maxed out, and thereby the maximum data throughput can be measured. Recording the data throughput against measurement time finally yields the available internet speed for downloading data.
Upload speed is tested by reversing the sequence of the download analysis. Again multiple connections are opened to the test server. Instead of downloading a file, a large file of random data is created on your device and pushed through all connections to the server. Pushing the data to the server over the network via multiple streams ensures that the maximum throughput is measured. Again, recording the data throughput against time yields the available internet speed for uploading data.
During the ping test, the device sends a small data package over the network to the test server on the internet. This test doesn't focus on upload speeds but on response time. When the server receives this package, it will send it back to the device, completing the roundtrip. The time it takes the data package to complete the roundtrip is called latency, also known as ping. To achieve an accurate reading, multiple ping tests are conducted consecutively, with the final result being the average of all these tests.
All these are automatically handled for you when you use Speedcheck to test internet speed. But you should take one crucial aspect into account to test speed accurately. Choose the right tool. This depends on the device you want to use, being a phone or tablet, or a computer. To check internet speed on a computer, use your browser and the app on this website. To achieve accurate results on mobile devices, you should download our iOS or Android app, respectively. This is especially important when running a WiFi speed test. Because browsers on mobile devices have poor performance, we suggest using a mobile app written in native code to ensure the most accurate speed test results.
Download speed determines the transfer rate of how fast data is transferred to your device from the internet. It's calculated by dividing the total throughput of data in a given time frame by its duration. Therefore its unit is denoted by units of data over time. Most often, download speeds are denoted in Megabits per second (Mbps or Mb/s), although other forms like Kilobits per second (Kbps or Kb/s) or Megabyte per second (MBps or MB/s) are also common.
Upload speeds as opposed to download speeds characterize the amount of data your device can send to the internet. It's calculated the same way and is therefore denoted in the same units. Upload speed is very important for online gaming and video calls, where you need as much speed as possible.
I can test my internet speed to learn about my connection speeds. This enables me to a) ensure that I'm getting what I'm paying for from my internet service provider and b) helps me adapt my expectations about what type of applications I can run like online games or video calls without issues on my network.
It's important to understand that different internet speeds are necessary for different usage scenarios. Both download and upload speeds determine what's possible. So when you test internet speed, keep in mind that the question "How fast is my internet?" can only be answered in relation to what you want to use the connection for. While simply browsing the web can be achieved with low single-digit megabit per second speeds, streaming Netflix in 4K resolution will need a maximum speed of at least a 25Mbps connection speed. Online gaming will primarily be influenced by your ping, with a smaller ping being better while publishing content on the web, like uploading large videos to Youtube will be primarily constrained by your upload bandwidth. To download files especially large files at a good speed you should aim for a download speed with a transfer rate of at least 10Mbps.
We've tested and reviewed all available internet speed tests in the market and examined how well they perform on both download and upload tests. Below you can find our ranking and check each of the test results to learn more about how each of the internet speed test work and the pros and cons of each solution. Ookla Speedtest Netflix Speed Test Google Speed Test AT&T Speed Test CenturyLink Speed Test COX Speed Test Xfinity Speed Test Speakeasy Speed Test Spectrum Speed Test Verizon Speed Test U.S. Cellular Customer Satisfaction Survey: 5G beats 4G and T-Mobile beats the Competition. Speedcheck investigates Why. Read Story 5G - Why are U.S. users not upgrading? Read Story WiFi 6 - What did consumers say in our Survey? Read Story I use Speedcheck to test my internet speed and troubleshoot connectivity issues. Find guides, insights and reviews on VPNs, Firestick, Kodi on vpncheck.org.
Download speed measures how fast information can transfer to you. It affects things like how long it takes to download large files, update games, or show pages with lots of photos. Download speed is measured in megabits per second (Mbps). One gigabit is 1000 Mbps, two gigabits is 2000 Mbps.
Upload speed measures how fast information can transfer from you. It affects things like how you appear on video calls, how fast you can upload files to the cloud, and how long it takes to add attachments to emails. Upload speed is measured in megabits per second (Mbps).
Jitter measures the fluctuations in the speeds at which a stream of data is sent. A high jitter score can affect streaming and video calls, making them look and sound choppy or glitchy. Jitter is measured in milliseconds (ms).
Your internet can be slow for many reasons. Your internet plan may be too slow for your needs, your modem or router may be out of date, your router may be on the fritz, or you might have too many people using your Wi-Fi at the same time. We can help you identify where the problem is and how to fix it.
You can improve your internet speed by upgrading to a faster plan, updating your equipment, or taking simpler measures like closing out apps and browser windows. We can walk you through 10 steps to improve your internet speed in just 15 minutes.
The fastest internet providers are Google Fiber, Verizon Fios, Xfinity, Metronet, and Cox. All of those internet providers offer fiber or cable internet plans with gigabit speeds. See our report on the Fastest Internet Providers.
If you see inconsistent results, there might be a bottleneck on your end. You can troubleshoot poor internet speeds with our guide on how to fix slow internet. But your internet connection may just be slow either from your plan or your internet type.
The time (measured in milliseconds) it takes for a signal to travel from your device to an internet server and back. Lower latency means your connection has a better response time for activities like gaming and livestreams.
A "packet" of information is sent from your device to the server and back. The amount of time it takes for that information to make the trip is your ping. Next, the speed test downloads and uploads a packet of data over that connection. How quickly your internet can transfer that data from the network to your device and from your device back to the network determines your download and upload speed.
This speed is measured to and from the device you are using to run the test, which means the type of connection has a big impact on the result. Speed to your device may vary greatly depending on whether you have a wired or WiFi connection. Over a WiFi connection, speed to your device may vary greatly depending on how close your device is to your WiFi point, as well as any obstructions or distance in between. On the other hand, a wired (Ethernet) connection from the device straight to the modem will be about the same as the network speed to your home or building. 041b061a72