You can use this web site
to check your download and upload speeds by using the speed test meter
below or by downloading the file at the bottom of this page.
This web server is connected into Telecom's core network
so this means if you are a Telecom broadband customer you will get the most
accurate results using this web site to check your speeds.
If you are a customer of another ISP then for the most accurate
results you would be better to use a speed test site hosted by your ISP.
You can learn more about what can influence your data speeds here
Further Download Tests