Optimus web: selective delivery of desktop or mobile web pages

We propose a system that selectively delivers the most accessible representations of a website to the end-user. To do so, we resort to a Web proxy that, using the results of an automatic evaluator, changes HTTP requests and delivers the most suitable available representation. The accessibility evaluator uses WCAG 2.0 [1] guidelines and considers pages after browser interpretation. We performed a user study with 19 blind participants where different representations of website were used. Results show that user performance correlates with the computed accessibility levels, and that for different websites either mobile or desktop versions may turn out to be more accessible. Expert users seem to perform independently from the level of accessibility of the pages. These results suggest that a proxy that selectively delivers Web page representations is feasible and that future work should also consider the profile of the user for selection.