The digital transformation processes of public administration have led to a progressive massification of electronic government services in the form of web portals that bring together all those that each state puts into consideration towards its citizens. One of the most important aspects to promote the use of these services, in circumstances such as the pandemic that is ravaging the world, is their ease of use. This article presents the results of a systematic review of the state of the art that describes the use of computer systems based on fuzzy logic to measure the usability of websites that provide electronic government services.