Measuring accessibility is a very defficult party. Try to make as much as possible automatically.
A11y-sitecheker is a tool to check a site against accessibility criteria. It uses axe-core with the option to combine results of multiple sites. On the one hand there is the option to let the tool crawl your whole site and on the other site you can provide urls which should be checked by the tool. The results are printed to the console, saved as JSONs or returned. The tool can be called by javascript or directly by command line. Additionally there are Images created which indicates the errors, shows the tab-order and other features.
