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Cox Internet Speed Test

Check the speed of your device's connection to the Internet and explore steps you can take to improve performance. For the speed test to provide the most accurate results, use a computer with a wired (Ethernet) connection, turn off wifi, and close all other programs on your computer. Get more tips ›

Compare your results

Sign in to your account to easily compare the Speed Test results to your Internet plan.

Unexpected results do not necessarily mean there's a problem with your Cox service. Many factors inside your home can cause the speeds on your device to be slower than the speeds Cox delivers to your home. Learn More ›


Want to improve your speed test results?

Here are a few steps you can take:

Improve speeds

Explore steps you can take to improve your Internet speed


See if there are any outages and reset your modem

Get faster speeds

Upgrade your internet plan in just a few clicks

Find your fast

Pick a home internet plan that fits your speed needs, then order online for our best prices

7 tips to improve your internet speed

Many factors inside of your home can affect your speed. Follow these tips to enhance your speed:


Reboot equipment

Reboot your modem and devices by powering them off and back on for optimal performance.


Cut the cameras

Only use video conferencing for those must-see moments. If video conferencing is the preferred way to meet for your job, try service-saving hacks like only turning on your camera when speaking and lowering your video resolution, or using audio-only.


Keep it on the low

Do you have a doorbell camera or other security cameras around your home? Consider lowering the resolution while you're at home.


Get a 360 view

View and manage devices on your home internet from the Panoramic Wifi App. You can turn the kids' iPads off when they've reached screen time limits or pause their wifi when you're on an important call.


Mind your network health

Computer viruses and malware can slow down your home internet. Use Cox Security Suite Plus powered by McAfee to protect your home computer. Panoramic Wifi customers can also turn on Advanced Security in the Panoramic Wifi App.


Network safety first

Double check that your home internet network is password-protected and no one else but your family is using it. Learn more


Microwaves matter

Did you know your internet experience could be slowed down if your wifi router is near a microwave, a fish tank, or mirror?

There are steps you can take to improve your wifi experience, but keep in mind that Wired (Ethernet) connections are faster and will provide more accurate speed test results.

Internet Support: Disconnect other devices

Disconnect other devices

Disconnect other devices and close all other programs, applications, and browser tabs (except the tab with the Speed Test) on your device to eliminate network congestion

Internet Support:  Move your router

Move your router

Place your router in a central, elevated, open location away from walls, metal objects, and objects that transmit radio waves like cordless phones, microwaves, & Bluetooth devices

Internet Support: Stand in different places

Stand in different places

Test your speed in different places around your home. Distance from the router and interfering objects can affect speeds.

Internet Support: Connect to 5Ghz network

Connect to 5GHz network

If you have a dual-band router, connect to the 5GHz network unless you are far away from the router or your device isn’t compatible

Internet Support: Check your router

Check your router

Make sure your router operates on the 802.11ac standard.

View Cox certified modems ›

Time to upgrade?
Explore Panoramic Wifi ›

Internet Support: Password protect

Password protect

Protect your network with a strong password to prevent others from using your wifi. Use a combination of upper and lower case letters, numbers and special characters.

Internet Support: Add wifi extenders

Add wifi extenders

Wifi extenders can stretch your network to eliminate dead zones. Extenders are available with Panoramic Wifi from Cox.

Explore Panoramic Wifi ›

For more help improving your wifi, check out the ways to Improve your In-home wifi network article in Cox Support.

Speed Test FAQs

No – you are not required to sign in prior to starting the Speed Test; however, by signing in first, you can see your current Cox Internet plan speeds to easily compare them to your speed test results. The test is intended to be run on your in-home Cox network but can be run on another network, such as using your mobile carrier data or public wifi.

Absolutely! We have designed the speed test so that it scales to multiple device types (Desktop Computer, Laptop, Tablet and Phone) and most major operating systems. Please note that laptop and desktop computers connected directly to your Cox modem typically provide better results than mobile devices due to the factors listed above.

No. Cox does not guarantee that the results of the speed test will match your plan subscription 100% of the time. This is due to a number of factors beyond Cox’s control which may impact your speed, including (but not limited to) the processing power of your personal computing equipment, applications running on your computer, the nature and quality of your home network connection, third party networks you may be connected to, and the performance of the websites you visit and congestion on the Internet.

The Cox Internet Speed Test is backed by Ookla and measures the ping (latency), download speed and upload speed between your device and a test server. Note that it does not measure the speed Cox is delivering to your modem since many factors affect the speed in your home as it's processed by your modem, device, and everything in between.

During the test, multiple connections to a nearby test server are made to measure latency and download/upload speeds. All samples are sorted by speed, and the two fastest results and the bottom quarter of the remaining samples are removed. The remaining samples are then averaged.

Test methodologies differ between speed test websites, which can cause your results to be different even if the conditions under which you're performing the test are the same. Here are some factors that can differ:

1. The location of the server being tested
2. The number of threads being used
3. How results are measured from analyzing test samples

Wired Connection – using an ethernet cable connected from your device directly to the modem to connect to the Internet and other devices

Wifi Connection – a wireless network that uses a radio frequency signal to connect your devices to the Internet and to each other

Cellular Connection – a network distributed by mobile carriers (AT&T, Verizon, Sprint, T-Mobile, etc.) over land through cells that together provide radio coverage over larger geographical areas

Download – how fast your connection delivers content from the Internet to your device. It determines how long it takes to download files (like photos, movies, songs) or display webpages with lots of images.

Upload – how fast content is delivered from your device to the Internet. It determines how long it takes to post pictures to social media or upload an email attachement.

Mbps – Megabits per second (Mbps) is is the industry-standard measure of transfer rate or Internet speed.

Latency – The reaction time (measured in milliseconds) of your connection–how quickly your device gets a response after you’ve sent out a request

Test Server – a computer system used as the central repository of data and various programs that are shared by users in a network

IP Address
– a unique string of numbers separated by periods that identifies each computer using the Internet Protocol to communicate over a network

Modem – a small device that connects to your Internet Service Provider (ISP) to provide Internet in your home

Router – a small device that connects to your modem via an Ethernet cable and passes the Internet connection on to other devices either via additional Ethernet cables or via a wireless network