In the last decades,the Web has grown from dozens of web pages to the current 13.5 billion pages1. This growth was not followed by a major conformance to markup coding guidelines. This im-pacts negatively the access of people with disabilities to the vast socio-economic-cultural transformations the Web engenders. For example, a form field without the proper label markup is an acces-sibility barrier for blind users. In this context, this work presents a study involving the Alexa.com's top 1,000 popular websites and a sample of random 1,000 websites to verify and contrast the con-formanceof thesedisjointsets with the accessibility markup guidelines. The initiative proposed in this paper is the first itera-tion of the Web Accessibility Snapshot (WAS) project, which will from now on present regular updates on the numbers regarding the status of Web accessibility. With the presented results, one expects to support accessibility professionals, researchers, and practition-ers by providing up-to-date information. Beyond that, we expect governments and other accessibility governance agency to consid-er the provided information when designing programs for foster-ing and enforcing the conformance to existing accessibility regu-lations and laws accordingly. Copyright 2013 ACM.