Computer science conferences are an important means of disseminating scientific information in this field, with an increasing contribution to the scientific landscape. The share of indexed conference papers has increased significantly in recent years, with a similar increase in their citation rate. While, in the case of journals, there are means of measuring the impact, such tools are difficult to be identified and used in the case of computer science conferences. Our intention was to offer an overview of existing options and explore some of the numerical criteria for conference rankings.