One of the less known advantages of the Turris router is the possibility to verify quality of Internet connection, the so-called QoS (Quality of Service), i.e. especially to measure the download and upload speed, IPv6 support, DNSSEC and parameters connected with net neutrality. Such a measuring may serve to analyse the use of the line and to evaluate whether paying a high speed fee is unnecessary. The experience of the Turris router users shows that the majority of their time online is spent in the slowest zone (0-250 kbps). Moreover, even when the majority of data is transferred in higher speed, fast operation may have only a tiny representation from the time´s point of view. Especially those who do not spend a lot of time watching videos pay extra for high speed connection for a relatively short time of use, mainly for the moments it takes to load a page or download and send an e-mail.
The ISPs are obliged to state the quality of service, especially the minimum, the commonly available, the maximum and the advertised speed in their contracts, in accordance with the European legislation (Regulation 2015/2120 of the European Parliament and of the Council) and the Czech Act on Electronic Communication (No. 127/2005 Coll.). The measuring tool available on Turris routers is thus possible to use also to indicative measuring of Internet connection speed, checking the compliance with obligation of a given ISP and as a basis for a complaint.
Just in 2018 the Turris router users have administered more than 190 000 tests, which is more than 4 tests per each minute! Thanks to participating in the MoQoS international project co-financed by the EU Connecting Europe Facility instrument, the close cooperation with the Czech Telecommunications Office on a tool and the NetMetr application, the anonymised results of the measurements are published in the form of open data. The advantages of open approach thus benefit not only the Turris users themselves, but also the Internet community representatives. Open data are easy to use (e.g. within the increasingly more popular hackathons) and to combine with other data. For example in Great Britain it was found out that the availability of high-speed internet increases the price of a real estate by GBP 6 500 on average, and that for many property owners fast and reliable connection is more important than available parking.