---
table-id: 17
table-title: Average non-compliance rate of websites with the applicable requirements of the European Norm EN 301 549
---

<div id="T17"></div>

| Principles | Simplified Monitoring | In-depth Monitoring |
|:---|:---:|:---:|
| Perceivable | 86% | 47% |
| Operable | 42% | 42% |
| Understandable | 23% | 24% |
| Robust | 75% | 64% |
| Average | 57% | 44% |
[Table [%table-id] – [%table-title]]