About AccessGrader
AccessGrader is a tool for evaluating digital accessibility and CO2 footprint of websites.
Accessibility
We check your website for the following accessibility aspects:
Alternative Texts
Checks if images have meaningful alt texts that describe the image content.
ARIA Labels
Verifies the use of ARIA labels for interactive elements like buttons and links.
Heading Structure
Analyzes the hierarchy and proper use of headings (h1-h6).
Contrast
Evaluates color contrast between text and background according to WCAG guidelines.
Keyboard Navigation
Checks the accessibility of all interactive elements via keyboard.
Language Declaration
Verifies if the main language of the website is properly declared.
CO₂ Assessment
The CO₂ assessment is based on various factors that influence the energy consumption and environmental impact of a website:
CO₂ Footprint Calculation
The CO₂ footprint of a website is calculated using multiple factors: server energy consumption, data transfer, caching efficiency, and visitor behavior. These factors are analyzed to assess the overall environmental impact.