This site is built using WordPress and uses the Tiny Framework theme which the authors claim:

Provides full web accessibility: conforms to WAI-ARIA (Web Accessibility Initiative – Accessible Rich Internet Applications) and WCAG 2.0 AA (Web Content Accessibility Guidelines) requirements.

However, I have not yet had a chance to conduct an accessibility check of the site and have it independently verified (which I intend to do by the end of Q1 2017).

In the meantime, if you experience any accessibility issues using the site please use the email me or use the contact form to let me know so I can take appropriate action.