Empowering Innovation | Microchip Technology

First time visit: View without clicking anything

Clock and Timing Components | Microchip Technology

8-bit PIC® and AVR® MCUs | Microchip Technology

16-bit Microcontrollers | Microchip Technology

Product Selection Tools | Microchip Technology

32-bit Microprocessors (MPUs) | Microchip Technology

64-bit Microprocessors (MPUs) | Microchip Technology

Microcontrollers (MCUs) | Microchip Technology

Analog | Microchip Technology

When specifying accessible names via `aria-labelledby`, ensure that the 
label elements exist.

## Explanation

Accessible names are required for many parts of a page, including form controls.
One way to accomplish this is to use `aria-labelledby` to specify the ID or IDs of 
other elements which contain a label. For example:

```html
<h2 id="dialog-labell">Important message!</h2>
<dialog aria-labelledby="dialog-label">
```

In this example, the `aria-labelledby` for the `<dialog>` points to an ID of `dialog-label`,
which doesn't exist. The heading it refers to instead has an ID of `dialog-labell`, presumably 
a typo.

## Why this matters

It isn't usually clear when an accessible name is broken, even during user testing.

This check helps to identify where an element clearly intended to have a label, but
that label is missing.

When a label is broken, it may be impossible for a user of assistive technologies
to understand what that element does.

missing-aria-labelled-by

March 2026

February 2026

Microchip Technology

Title / URL	Issues
Empowering Innovation \| Microchip Technologywww.microchip.com/	9
First time visit: View without clicking anythingwww.microchip.com/	9
Clock and Timing Components \| Microchip Technologywww.microchip.com/en-us/products/clock-and-timing/components	6
8-bit PIC® and AVR® MCUs \| Microchip Technologywww.microchip.com/en-us/products/microcontrollers/8-bit-mcus	3
16-bit Microcontrollers \| Microchip Technologywww.microchip.com/en-us/products/microcontrollers/16-bit-mcus	2
Product Selection Tools \| Microchip Technologywww.microchip.com/en-us/products/selection-tools	1
32-bit Microprocessors (MPUs) \| Microchip Technologywww.microchip.com/en-us/products/microprocessors/32-bit-mpus	1
64-bit Microprocessors (MPUs) \| Microchip Technologywww.microchip.com/en-us/products/microprocessors/64-bit-mpus	1
Microcontrollers (MCUs) \| Microchip Technologywww.microchip.com/en-us/products/microcontrollers	1
Analog \| Microchip Technologywww.microchip.com/en-us/products/analog	1

Fix missing ARIA label IDs

Microchip Technology

Where this issue has occurred