Use tools running on M-Lab to test your Internet connection. | M-Lab
http://www.measurementlab.net/measurement-lab-tools#glasnost
How to Troubleshoot a Flaky Internet Connection - Troubleshooting - Lifehacker
http://lifehacker.com/5319976/how-to-troubleshoot-a-flaky-internet-connection
HOW TO Troubleshoot a Flaky internet connectionSimulate Slow Internet Connection while Testing your Apps
plugin para firefox que te permite controlar tu velocidad de conexion (tambien en la red local) para poder testar tus paginas
Langsame Internetverbindung simulieren (Firefox)
simulation small bandwidth