The article emphasizes the importance of observability in monitoring accessibility compliance, particularly during Global Accessibility Awareness Month. Observability involves measuring internal system states through outputs to ensure adherence to accessibility criteria and evaluate engineering teams' effectiveness in addressing defects. Tools like Grafana and Sitespeed.io are discussed for their capabilities in aggregating and visualizing data related to accessibility and site performance, highlighting the need to build a culture around accessibility testing beyond automated workflows. The article also underscores the necessity of manual checks for certain WCAG criteria, such as providing captions for video content, and advocates for a proactive mindset in developers to address various accessibility needs. Ultimately, the focus is on fostering an observability culture within engineering teams to continually review and improve accessibility compliance, utilizing tools like Grafana for visualizing and tracking accessibility violations over time.