Internet Speed Test

This internet speed test can be used to help you determine your true bandwidth on any connection, such as Broadband, Cable, Satellite and DSL Modems. Note: For best results, please make sure you are running the latest version of java.

NOTE: IF you can’t run the speed test or the load it too high (connection refused message) try my Facebook Speedtest Application. If you have any questions, please leave a comment at the bottom of this page.
We created our Internet Speed Test to be the most accurate broadband Speed Test on the internet! In fact, many sites charge for speed tests similar to this one!
Because this speed test is so popular we have to limit the test to 15 users at a time. Although we have a large amount of bandwidth, this speedtest may take up to 30 seconds to complete, so please be patient.

Think the test on this page was cool, then check out our new Broadband Speed Test! Own a website? You can put place the test on your site free of charge, complete with logging options and much more! Click on the graphic to your left to give it a spin and learn more!

Before you start the Bandwidth Test
This test accurately measures bandwidth and serves as a DSL speed test and Cable Modem Speed test to help visitors troubleshoot and locate bandwidth issues.
Before you start the Speed Test, please keep in mind that it uses TCP port 8500 and 8600 to 8609 to test packets. What does this mean? If you see a ‘connect time out’ message, then you need to tell your firewall to allow 76.74.166.239 (that’s our server) to communicate with your computer using TCP port 8500.
Here is an example of the IP Security Policy on a XP machine:

Protocol = TCP, Source Port =8500, Destination Port = ANY, Source Address = 76.74.166.239, Source Mask = 255.255.255.255, Destination Address = My IP Address, Destination Mask = 255.255.255.255
Speed Test – No Graphic?
If you still can not run the bandwidth test, download the latest version of Java. If this does not work, please let me know and I’ll work with you on this.
You can also try our very popular Broadband Speed Test and / or our Speed Test which also supports any language in the world!
It would be greatly appreciated if you would notify us of any problems with this speed test – Thank you!

Bandwidth Testing can be complicated!

There is a lot more to an internet speed test than meets the eye! When you measure bandwidth, be it DSL speed Test, Cable Modem Speed Test or any other, you have to consider the devices the packets of data travel through. A speed test also has to consider the technology used to deliver those packets of data and account for variations in speed.
To give you the most accurate results, our internet speed test was based on a research paper by Liang Cheng2 and Ivan Marsic from the Department of Electrical and Computer Engineering at Rutgers, the State University of New Jersey. The paper explains in detail how to accurately measure Digital Subscriber Line Networks and is used by our speed test.
In researching Broadband Speed Tests, we also found some very ‘unfriendly’ user interfaces that left us confused as to the results. We have put great effort into providing an accurate, easy to understand graphical interface that clearly displays the results of the internet speed test.
For those of you interested in greater detail, keep reading; otherwise, just click the speed test start button. This speed test uses Java and will not work with java disabled.
Internet Speed Test Definitions
The following internet speed test terms are useful for understanding the Speed Test measurement report:
QOS
Represents the level of consistent download capacity provided by your Broadband or DSL provider. The higher QOS percentage, the higher the overall quality of the internet connection. High quality plus internet speed provides better connections for VoIP (voice over IP), Citrix and other high traffic applications.
This figure should come in around 80 or higher yet. This does not mean that you won’t find success at lower speeds, but on average, the speed test should report >= 80.
RTT
The Round Trip Time (RTT) reports the total time in milliseconds (ms) to send a small data packet in our internet speed test and obtain a reply back. The faster (smaller) the RTT, the better broadband speed you’ll have.
For Voice over IP, round trip delays can occur when results exceed 250 mSec or 150 mSec one way which is also considered the maximum desired one-way latency to achieve high-quality voice.
Max Pause
Max Pause is the longest pause recorded during the Broadband Speed Test data download. This should be a very small number. If not, it could indicate Internet speed congestion or a bad broadband connection.
Anything less that 100 would be ideal for this broadband speed test.