The internet services market in tourism is developing intensively. Among factors affecting the quality of hotel services, modern information technologies play an important role, so hotels need to adapt to this dynamically changing virtual environment. Since more and more Internet users use mobile devices, hotels should make their websites work with such devices; in other words, they should make them responsive. Responsive websites smoothly adapt to changes in browser size and screen resolution of all types of devices, both desktop and mobile. A site designed in such a way makes it easier to read content and navigate irrespective of the device used. The aim of the study is to analyze the state of adaptation of hotel websites in Rzeszów and its surroundings to mobile devices. The results show that in 2016 many hotels did not have websites designed for mobile devices. Thus, there is a need to invest in websites compatible with mobile devices. Thanks to responsive websites, hotels will be more visible on the Internet and thereby easier to reach for potential customers.