# Test your custom elements and trust the results with Axe-core's support for ElementInternals

DevFeed: [Test your custom elements and trust the results with Axe-core's support for ElementInternals](<https://devfeed.tech/articles/test-your-custom-elements-and-trust-the-results-with-axe-core-s-support-for-elementinternals-9434.md>)

Original publisher: [Read original article](<https://www.deque.com/blog/test-your-custom-elements-and-trust-the-results-with-axe-cores-support-for-elementinternals/>)

Author: Wilco Fiers

Published: 2026-08-27T13:21:18Z

Content type: article

Language: en

Sources: [Deque](<https://devfeed.tech/sources/deque.md>)

Topics: [Accessibility](<https://devfeed.tech/topics/accessibility.md>), [axe-core](<https://devfeed.tech/topics/axe-core.md>), [interoperability](<https://devfeed.tech/topics/interoperability.md>), [Front end](<https://devfeed.tech/topics/frontend.md>), [browser](<https://devfeed.tech/topics/browser.md>), [Angular](<https://devfeed.tech/topics/angular.md>), [React](<https://devfeed.tech/topics/react.md>), [Vue.js](<https://devfeed.tech/topics/vue.md>), [aria](<https://devfeed.tech/topics/aria.md>)

Tags: [a11y-for-developers](<https://devfeed.tech/tags/a11y-for-developers.md>), [accessibility](<https://devfeed.tech/tags/accessibility.md>), [angular](<https://devfeed.tech/tags/angular.md>), [aria](<https://devfeed.tech/tags/aria.md>), [axe-core](<https://devfeed.tech/tags/axe-core.md>), [browser](<https://devfeed.tech/tags/browser.md>), [compliance](<https://devfeed.tech/tags/compliance.md>), [frontend](<https://devfeed.tech/tags/frontend.md>), [interoperability](<https://devfeed.tech/tags/interoperability.md>), [react](<https://devfeed.tech/tags/react.md>), [testing](<https://devfeed.tech/tags/testing.md>), [vue](<https://devfeed.tech/tags/vue.md>), [web-accessibility](<https://devfeed.tech/tags/web-accessibility.md>)

## AI overview

The article explains how custom elements and ElementInternals can standardize components across React, Angular, and Vue while allowing components to declare accessibility semantics. It highlights axe-core support for ElementInternals, enabling teams to test accessibility consistently across framework implementations and support compliance at enterprise scale.

## Source excerpt

If you're a large enterprise organization with accessibility issues resulting from interoperability challenges, moving to ElementInternals is a savvy move. You can standardize, and safely test. And, with Axe-core now supporting ElementInternals, you can test those components and trust the results. The post Test your custom elements and trust the results with Axe-core's support for ElementInternals appeared first on Deque.