Troy Chaplin

mikecorkum

<a href="https://blockaccessibilitychecks.com/" rel="nofollow ugc">Block Accessibility Checks</a> is a comprehensive WordPress plugin that proactively prevents accessibility issues in your content before they reach your audience. Designed for the Gutenberg block editor, it provides real-time validation with a three-tier system that ensures your blocks, post meta fields, and overall document structure meet WCAG (Web Content Accessibility Guidelines) requirements.
Unlike reactive accessibility tools that scan published content, this plugin catches problems during the editing process—giving immediate visual feedback and preventing publication of content with critical accessibility errors. Content creators get clear guidance on what needs fixing, while developers can extend the system with custom checks for blocks, meta fields, and editor-level validation.
Whether you’re a content creator ensuring your posts are accessible, a developer building accessible blocks, or an organization maintaining compliance standards, Block Accessibility Checks provides the tools you need to create inclusive content effortlessly.
Features for Content Creators & Editors:
<ul>
<li>Real-time Visual Feedback – See accessibility issues instantly with color-coded borders (red for errors, yellow for warnings) around problematic blocks and detailed error messages in the block inspector panel</li>
<li>Smart Publishing Control – Critical accessibility errors prevent publishing until resolved, while warnings allow publication with user awareness</li>
<li>Comprehensive Block Coverage – Built-in validation for images, buttons, tables, headings, and galleries with clear guidance on how to fix issues</li>
<li>Document-Wide Validation – Advanced heading hierarchy checking prevents skipped heading levels and ensures proper content structure across your entire post</li>
<li>Title Validation – Ensures posts and pages have a title set for accessibility and SEO, validates in real-time as you type</li>
<li>Intelligent URL Validation – Real TLD validation using the Public Suffix List ensures only legitimate domains are accepted in button links</li>
<li>Configurable Settings – Control which checks are errors (prevent publishing), warnings (allow with notice), or disabled through an intuitive admin interface</li>
<li>Grouped Error Display – All accessibility issues shown at once in organized groups, eliminating the “fix one, see another” frustration</li>
<li>Works Everywhere – Validation runs in both the post editor and site editor (templates/template parts) with separate configurable settings</li>
</ul>
Features for Developers & Plugin Authors:
<ul>
<li>Three-Tier Validation API – Register custom checks for block attributes, post meta fields, and editor-level validation using comprehensive hooks and filters</li>
<li>JavaScript-Only Validation – All validation logic runs in JavaScript for real-time editor feedback without server round-trips</li>
<li>Automatic Settings Integration – External plugins automatically get their own settings pages under the Block Checks menu</li>
<li>External Plugin Support – Works seamlessly with custom blocks from third-party plugins and themes</li>
<li>Extensive Hook System – 20+ action and filter hooks for complete customization of registration, validation, and display behavior</li>
<li>Well-Documented API – Complete developer documentation with quick start guides and working code examples</li>
</ul>
How It Works:
The plugin provides immediate feedback as you edit content through a sophisticated three-tier validation system:
<ol>
<li>Block Validation – Validates individual block attributes in real-time as you type and edit</li>
<li>Meta Field Validation – Checks required post meta fields with automatic post locking when validation fails</li>
<li>Editor-Level Validation – Validates document-wide concerns like heading hierarchy that span across multiple blocks</li>
</ol>
When accessibility issues are detected, they are highlighted with visual indicators (red for errors, yellow for warnings) and detailed messages explain how to fix the problems. Critical errors prevent publishing until resolved, while warnings allow publication with user acknowledgment.
Built-in Accessibility Checks:
<ul>
<li>Button Blocks – Ensures buttons have descriptive text content and validates link destinations using real TLD validation (Public Suffix List)</li>
<li>Image Blocks – Requires alt text (unless marked decorative), validates alt text length (warns if exceeding 125 characters), prevents caption duplication, and detects non-descriptive patterns like “image of” or “photo123”</li>
<li>Table Blocks – Requires proper headers or captions for screen reader navigation</li>
<li>Heading Blocks – Validates proper heading hierarchy across entire document (prevents skipped levels), ensures appropriate first heading level (H2 recommended, H1 allowed with warnings), and provides configurable heading level restrictions (H1, H5, H6 can be disabled)</li>
<li>Gallery Blocks – Applies comprehensive image accessibility checks to all gallery items (alt text, length, patterns, caption duplication)</li>
<li>Post & Page Title Validation – Ensures posts and pages have a title set for accessibility and SEO, validates in real-time as users type, prevents publishing content without a title, configurable independently for posts and pages</li>
<li>Post Meta Fields – Validate required custom fields with real-time validation, automatic post locking for errors, and seamless integration with block validation system</li>
</ul>
Perfect For:
<ul>
<li>Government websites requiring WCAG compliance</li>
<li>Educational institutions with accessibility mandates</li>
<li>Businesses committed to inclusive web content</li>
<li>Developers building accessible WordPress themes and plugins</li>
<li>Content teams who want accessibility guidance built into their workflow</li>
</ul>
Developer Resources:
Extend the plugin with <a href="https://github.com/troychaplin/block-accessibility-checks/blob/main/docs/" rel="nofollow ugc">custom accessibility checks</a> using the comprehensive validation API. See the complete <a href="https://github.com/troychaplin/block-accessibility-checks/blob/main/docs/" rel="nofollow ugc">developer documentation</a> for quick start guides, API reference, code examples, and a <a href="https://github.com/troychaplin/block-check-integration-example" rel="nofollow ugc">working example plugin</a>.
<h3>Getting Involved</h3>
If you would like to get involved and contribute to the development of this plugin or view it’s source code you can find more information in the <a href="https://github.com/troychaplin/block-accessibility-checks" rel="nofollow ugc">plugins GitHub repo</a>.

Block Accessibility Checks

Prevent WCAG accessibility errors in your content with real-time validation for blocks, meta fields, and document structure.

Joe Dolson

This plug-in helps with a variety of common accessibility problems in WordPress themes. While most accessibility issues can’t be addressed without directly changing your theme, WP Accessibility adds a number of helpful accessibility features with a minimum amount of setup or expert knowledge.
WP Accessibility is not intended to make your site compatible with any accessibility guidelines.
All features can be disabled according to your theme’s needs. For advanced users, all of the functions based on modifying stylesheets can be customized using your own custom styles by placing the appropriate stylesheet in your theme directory.
<h4>Theme Accessibility Features added by WP Accessibility</h4>
These are features that address issues caused by inaccessible themes.
<ul>
<li>Add skip links with user-defined targets. (Customizable targets and appearance.)</li>
<li>Add language and text direction attributes to your HTML attribute if missing.</li>
<li>Add an outline to the keyboard focus state for focusable elements.</li>
<li>Add a long description to images. Use the image’s “Description” field to add long descriptions.</li>
<li>Enforcement for alt attributes on images in the Classic editor.</li>
<li>Identify images without alt attributes in the Media Library</li>
<li>Add labels to standard WordPress form fields (search, comments)</li>
<li>Add post titles to “read more” links.</li>
<li>Remove tabindex from elements that are focusable. (Also fixes plugin-caused problems.)</li>
<li>Remove user-scalable=no to allow resizing.</li>
</ul>
<h4>WordPress Core Accessibility Issues fixed by WP Accessibility</h4>
These are features that address issues caused by current or past WordPress core accessibility issues. (Issues added in content, such as target or title attributes, are persistent even when WordPress is updated.)
<ul>
<li>Force a search page error when a search is made with an empty text string. (If your theme has a search.php template.)</li>
<li>Remove redundant title attributes from tag clouds.</li>
<li>Disable default enabling of full screen block editor.</li>
</ul>
Content specific fixes:
<ul>
<li>Strip title attributes from images inserted into content.</li>
<li>Remove the target attribute from links.</li>
</ul>
<h4>Accessibility Tools in WP Accessibility:</h4>
These are tools provided to help you identify issues you may need to fix.
<ul>
<li>Test the color contrast between two provided hexadecimal color values.</li>
<li>Enable diagnostic CSS to show CSS-detectable problems in visual editor or on front-end of site.</li>
<li>Search your media library on content in alt text fields.</li>
</ul>
Learn more! <a href="https://docs.joedolson.com/wp-accessibility/" rel="nofollow ugc">Read about the accessibility issues corrected</a> by WP Accessibility!
The plug-in is intended to help with deficiencies commonly found in themes and to solve some issues in WordPress core. It can’t correct every problem (by a long shot), but provides tools to fix some issues, supplement the accessibility of your site, or identify problems.
<h4>Statistics Collection</h4>
WP Accessibility includes a statistics collection feature to help you identify how WP Accessibility is used on your site. This package does not collect any personally identifying data.
<a href="https://docs.joedolson.com/wp-accessibility/2023/11/16/wp-accessibility-statistics/" rel="nofollow ugc">Learn more about WP Accessibility statistics</a>.
<h4>Contribute!</h4>
<ul>
<li><a href="https://translate.wordpress.org/projects/wp-plugins/wp-accessibility" rel="nofollow ugc">Help Translate WP Accessibility</a></li>
<li><a href="https://github.com/joedolson/wp-accessibility" rel="nofollow ugc">Contribute to WP Accessibility</a></li>
</ul>

WP Accessibility

My theme doesn't come with accessibility out of the box. WP Accessibility fixed some of those. Brilliant plugin and above all it is free.

Top Class!!

Essenziale per rispettare le regole di accessibilità.

Plugin eccellente

WP Accessibility fixes common accessibility issues in your WordPress site.

Block Accessibility Checks vs WP Accessibility