Speed and reliability testing (load / stress / performance testing). This test helps to check a behaviour of websites (or its parts) at the same time with an influx of a lot of users. Poor performance (speed) - this is the main issue of many Internet projects. You can build really cool useful site, but low performance could decreased all your achievements.
Our company has 6 years of experience in the education specifically in the field of software testing, including preparation for the ISTQB certification. With extensive experience of teaching in groups, we are faced with the fact that one of the biggest problem is lack of time. It is very difficult to find time to practice, which will be convenient for all group members.