<span lang="en">This paper presents velocimetro.org, the service developed by the Engineering Faculty of Bilbao to provide access speed measurements in Internet. The explosion of Internet Service Providers (ISP) and different types of technologies in Internet access, makes it difficult for Internet users to decide about the best or more acquaint access to cope with their needs. Velocimetro.org offers the possibility to obtain a neutral measurement of the quality of service (QoS) of the access to Internet. In this way, users can evaluate and decide if their ISP is covering their demands or, on the contrary, is not complying with the terms of the contract. From this point of view of an ISP, velocimetro.org allows to make comparisons of their service against their competitors.</span>