I used Speedtester as suggested and got the following result:
Test1 comprises of two tests
1. Best Effort Test: -provides background information.
Download Speed
117 Kbps
0 Kbps 250 Kbps
Max Achievable Speed
Download speedachieved during the test was - 117 Kbps
For your connection, the acceptable range of speeds is 100-250 Kbps.
Additional Information:
Your DSL Connection Rate :1760 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 135 Kbps
2. Upstream Test: -provides background information.
Upload Speed
329 Kbps
0 Kbps 448 Kbps
Max Achievable Speed
>Upload speed achieved during the test was - 329 Kbps
Additional Information:
Upstream Rate IP profile on your line is - 448 Kbps
We were unable to identify any performance problem with your service at this time.
It is possible that any problem you are currently, or had previously experienced may have been caused by traffic congestion on the Internet or by the server you were accessing responding slowly.
If you continue to encounter a problem with a specific server, please contact the administrator of that server in the first instance.
Which probably means a lot more to you guys than it means to me! It tells me there's no problem with my service, but if that's the case why is it so much slower than it used to be? Does it mean my service itself has been altered for the worse by the provider or something?