This article covers WCAG Level AA rules. Readable accessibility analysis identifies problems according to WCAG rules of different levels.
You can find the main set of rules and ways to fix the different issues in this source.
Some additional rules and their details are listed below:
| Rule ID | Description |
| font-size | Make sure the font size is sufficient for the text to be readable. |
| placeholder-for-label | Make sure the placeholder attribute is not used as a replacement for a label. |
| duplicated-labels | The form contains multiple %s elements with the same text content. |
| iframe-lang | The %s element does not have a lang attribute. |