Most Accurate Broadband Speed Test

2/15/2022by admin
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Speed test

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. Our top choice is Ookla's, which happens to be one of the oldest.

Test your internet connection’s download and upload speed; plus check ping and latency performance with this very easy to use tool. This fast and accurate speed test is suitable for checking all internet connection types (ADSL, cable, fixed wireless, 3G, 4G, 5G, fibre, satellite etc) and users of NBN/non-NBN ISP services. Ookla Speedtest® This is the most accurate way to test internet speeds and network diagnostics. Your test results will help us compile our monthly speed test results which show the fastest and slowest broadband providers in the UK. Without broadband speed test tools there would be no way of holding your supplier to account, you just wouldn't know if you were getting the service you are paying for.

Having fast internet access is no longer a nice to have. Whether it’s watching streamed content, web browsing, video calling or smart appliances, the way we live now means reliable and fast broadband is an essential utility that needs to work when we need it. Running a speed test is an easy and quick way to start troubleshooting slow broadband or check what speed you're getting right now.

What is an internet speed test?

A speed test is a free web-based service that measures the speed, latency (delay) and jitter (difference in delay) of data sent between your computer or device and a nearby test server.

A speed test first checks how fast your connection can download information. It does this by requesting a piece of reference data and measuring the real-time transfer speed. If the test calculates your connection can handle more data, it will open up more connections to send even more information. The goal is to send as much information as your connection can handle to accurately measure your download speed.

The upload test run the same way as the download test, but in reverse. Data is sent from your computer to the test server over multiple connections to measure your maximum upload speed.

NOTE: Before you begin a speed test, it's important only one computer or device is online in your house when the test is carried out, so if you have flatmates or kids maybe wait until they go out or go to bed.

Know what broadband connection you have

If you’re not sure what type of broadband you have, you can use the Chorus Broadband Checker to find out what connection you’re on currently and what other options might be available. Understanding the potential speed of your connection will be useful when it comes to interpreting your results.

Where to test

You can find out how fast your broadband connection is running using the Chorus Speed Test. It’s powered by Ookla’s easy-to-use network performance measurement technology.

How to run an internet speed test

When you’re ready to test your home connection, here are our suggestions for how to get the most accurate result:

  1. Use an ethernet cable to plug your computer into your modem. Ethernet cables deliver data many times faster than wifi, so always plug in your device before you start your test.
  2. Restart your computer or close memory-hungry applications like image editors, video and music streaming apps as they can slow down your system and skew your test results.
  3. The Chorus Speed Test runs in your browser and activity in other tabs will slow your system and affect your results. Close down all your tabs and restart your browser before beginning the speed test.
  4. Make sure nobody else is online. If other family members are using the internet when you run your test, there will be less bandwidth (or capacity on your connection) to run the test properly. You might like to take the extra step and temporarily turn off your router's wifi and disconnect ethernet cables from other devices like your TV. Just remember to reconnect everything after your test.
  5. The Chorus Speed Test will automatically select a test server nearest to you. You can select a different location by choosing a new server from the drop-down list before you begin a test, or from the results page before you begin a new test.
  6. Run the test several times and at different times of the day to get a fuller picture of your broadband performance. Don’t be concerned by small differences between results.
  7. Try different speed test providers and servers as results will vary depending on how each service runs its test and calculates your results. In addition to,,, TestMyNet and Speed of Me are popular speed test choices.
  8. If you are on a 950 Gb plan or higher and you aren’t seeing the results you expect, try using Ookla’s desktop app. You can find the app in the Microsoft and Mac App stores.

Understanding your results

The Chorus Speed Test will tell you how fast you can download and upload data. These speeds are described as megabits per second (Mbps) and they should match, or be very close to, the download and upload rates specified by your broadband provider for your plan.

Bear in mind that if you live far from a cabinet or exchange you may not be able get the maximum speed for your broadband plan. Fibre broadband does not have this limitation and is your best option if it's available in your area. Use the Chorus Broadband Checker to see what's available where you live.

Your speed test results will also mention ping and jitter. These metrics tell you how much delay you're experiencing, so the lower these values are the better.

Learn more about this topic: Speed test results explained

What can influence your results?

Good broadband is more than just your connection – it’s a combination of factors including your broadband plan, the modem you use, the age of your device or computer, the number of people online and the capacity of your provider's network. Any one of these has the potential to affect your overall internet experience.

The good news is many of these things are within your control. Check out our list of tips and suggestions if you are experiencing slow broadband performance.

Become a broadband volunteer

If you're serious about testing the quality and speed of your broadband connection you can sign-up to be a broadband volunteer and participate in the Commerce Commission's project to measure New Zealand's broadband performance.

Most Accurate Broadband Speed Test

If you're selected, you're receive a Whitebox from the research firm SamKnows. The box will measure the quality of your internet connection - not what you're using - and you get access to a dashboard of reports for your connection. Head to Measuring Broadband New Zealand website to find out how it works.

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Why do I get a “socket error” message?
An error may result from having the speed test open in more than one browser tab or window. The test may fail to complete and display the following message:
“A socket error occurred during the Upload test. Please try again later.”

To prevent this error, and get the most accurate test results, close all other browser tabs and windows before running.

If you continue to get a socket error message, or another type of error message, please provide feedback by emailing us at [email protected] Please, include your OS/Browser information.

Why is the location I usually pick missing from the City list?
We first complete a latency test to our servers, and if a server does not respond within a specified time frame, it is not included in the City list.

Most Accurate Broadband Speed Test Site

A slow response can be caused by latency or packet-loss between the client and server, or particularly high Internet usage (during peak hours). Do try the test again in a little while.

In which browsers does the Speed Test work best?
For best results, use the most recent version of your favorite browser. But at minimum use Firefox 53, Chrome 59, Safari 10, IE 11, or Edge 13 or higher. If you are unable to see Speed Test, though other content appears on the speed test page, check your browser's security setting. Try lowering the setting from High to Medium-High, or even a bit lower, to allow the broadband test application to load.

Why am I receiving “Could not connect to the Internet” errors when I am connected?
In some cases, firewall and security software can prevent the test from running and generate a 'could not connect' error. Temporarily lowering the severity should allow the broadband test to run. Be sure to turn it back on before leaving our website.

Why didn’t the test choose the server location nearest me?
Our Speed Test automatically detects the optimal server host location for testing, which is not necessarily the closest server host. This is due to real-time network circumstances like number of hops, or current traffic load on each test server. Change the selection using the Change City drop down function directly underneath the Start Test button.

Why is my speed lower than expected?
Several factors may slow your connection, resulting in lower-than-expected speeds. Try these simple suggestions below. But if your slower speeds persist, contact your broadband service provider to see if they can determine the issue.

  1. Be sure to stop any downloads or programs that may be using your connection while running the test.
  2. When using a wireless connection, there may be wireless interference. Try using a wired Ethernet connection instead.
  3. Try rebooting your modem or router and then running the test again.

What is “Throughput” and what factors affect my results?
There are many factors that impact your speed test results. Throughput problems in your local area network, IP or access overhead, and network design all play a role. Please read the definitions and examples below to learn more about these factors.

  • Download
    Download is a measure of how fast your connection delivers content to your computer or local area network.
  • Upload
    Upload is the measure of how fast content is delivered from your computer or local area network to others on the Internet.
    For businesses or power-users, download and upload speed should match or at least be very close. This is important for applications like VoIP, on-line gaming and other interactive programs. Upload speed is even more important if you are operating a server at your location. If achieving optimal upload speed is a concern, consider Ethernet or T1 services.
  • Kbps
    Kbps transfer rate = kilobit per second transfer rate. There are 8 bits in a byte, so we would divide kbps by 8 to get KB/sec transfer rate.
  • Mbps
    Mbps transfer rate = megabits per second transfer rate. 1000 kilobits equals one megabit. One megabit per second equals 1 million bits per second. Mbps is the industry-standard used by ISPs.
  • MBps
    MegaBytes per second. There are 8 megabits in one megabyte.
  • Transfer Rate
  • Transfer rate is speed at which data can be transmitted between devices. As files to download become increasingly larger, the highest data transfer rate is most desirable.
  • Throughput
    Throughput is the maximum amount of communication or messaging that can be transmitted through a communication channel during an elementary unit of time, usually, in a second.
    Depending on the type of channel, the addressing mechanism used in that channel, the type of messages are being transmitted and how secure the transmission needs to be—along with physical attributes like temperature, humidity and signal-to-noise ratios—actual measured throughput will vary.

An Example of Throughput
You have Ethernet 8.0 Mbps service and need to transmit an email which is exactly 1MB in size You may expect it will take exactly 1 second to transmit that message. But it will actually take longer as the total information that needs to be transmitted is more than 1MB. The total information is called Payload. The channel needs to not only transmit the payload but also some addressing details like where it is coming from and where it is destined to.

The device that sends this email will break down the message into smaller pieces and package them into what are called IP Packets. The size of these packets is usually determined by your Local Area Network. Some have smaller size, so the message will take more IP Packets to transmit; while others may have larger size which needs fewer IP Packets. Each IP Packet also contains an IP Header. This is where the information like the source IP Address, the destination IP Address and additional information about the payload is included. IP Header is usually 20 Bytes (160 Bits) long.

Assuming that this customer uses 100 Byte payload, each IP Packet will now be 120 Bytes long. And that 1MB message will have to be broken down into 10,000 payload pieces. That means to transmit the whole message the channel really needs to transmit about 1,200,000 Bytes or 1.2 MB or 9,600,000 bits. It will take at least 1.2 seconds to transmit all these bytes on this 8 Mbps service assuming that all these IP packets with the payload arrive without any errors and not needing re-transmission. This is called IP Overhead.

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Actual Throughput will always be less than line rate of the access service that is communicated by your provider—and this is all based on IP Overhead only. Ethernet services also have a Layer 2 or Ethernet Overhead. Other services may have ATM, Frame Relay or other kinds of Overhead depending on the design. All of this may contribute to a slower bandwidth throughput than what you are expecting.

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Other frequent factors influencing throughput:

  • The number of devices sharing the access circuit and the activity the other devices are generating while the test is running
  • A rogue LAN port that is clogging the LAN with transmission
  • A leaky LAN port which degrades LAN performance
  • LAN signaling issues which create a lot of packet re-transmission for the devices on the LAN
  • LAN Router with performance issues, low processing power or Deep Packet Inspection and advanced security features like URL blocking enabled
  • Wireless Access Points on the LAN side
  • Distance (both geographical as well as number of hops) between the speed testing client and the server

Why do I see a license expiration notice?
This notice is in place to protect our test from being stolen and run, mirrored, or framed into another website.

Speed Test - Most Accurate Online Broadband Speed Test

To remove this notice:

Most Accurate Broadband Speed Test

Make sure you are going to We have software in place to block the test from being used in any other domain.

Also, you may have an older version of the test cached in your browser. Clearing your cache and Fusion Connect cookies should make the license expiration notice disappear.

How does security software and firewalls impact the test?
Our internet broadband test sends packets of empty data back and forth to your computer in order to test your line speed. Since we are a third-party sending a receiving a tiny data packet from your computer to perform the test, some ad block or security services interpret this as an attack and act accordingly. Temporarily lowering the severity should allow the speed test to work. Be sure to turn it back on before leaving our website.

How do I save my bandwidth test results?
Your most recent speed test results are saved in your Results History when tested on desktop or tablet.

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