---
title: "Measure accessibility, don’t estimate it: a 32-page audit"
description: "How usable a website really is, for every user, in both color modes, and on every screen size."
canonical: "https://simosphereai.com/en/field-reports/measuring-accessibility"
lang: en
---

# Measure accessibility, don’t estimate it: a 32-page audit

How usable a website really is, for every user, in both color modes, and on every screen size.

- Published: 2026-10-06
- Updated: 2026-10-06
- Status: praxis
- Publisher: SIMO GmbH

## Starting question

How usable is a website really, for every user, in both color modes, and on every screen size?

## Result: works

Measured automatically, accessibility becomes a quality gate: contrast errors down by about 70 percent, language errors by about 62 percent.

With automated checks across every page, both color modes, and several screen widths: performance, accessibility, contrast, multilingual content, and layout. Figures before and after make progress provable; in our audit of 32 pages contrast errors fell by about 70 percent.

## What we did

We tested 32 pages automatically in two color modes and four screen widths: performance, accessibility, contrast, multilingual content, and layout.

After the fixes, contrast errors dropped by around 70 percent and language errors by around 62 percent. Remaining work stayed open and was named.

## What it means for business architecture

Accessibility is a requirement you can measure. Automating it repeatably turns it into a quality gate rather than a one-off exercise.

## Lessons learned

- A light and a dark mode double the test scope. Errors often cluster in one of the two.
- Before-and-after measurements make progress provable.
- Open issues belong explicitly in the report, not swept under the rug.

Rendered version: https://simosphereai.com/en/field-reports/measuring-accessibility