Wirt Images Checker – A Simple Way to Find Images Without Alt Text in WordPress

Images make websites more engaging, but they also introduce one of the most common SEO and accessibility issues: missing alternative text. Whether you manage a personal blog, an online store, or a business website, overlooking image alt attributes can negatively affect both search engine optimization and the experience of visitors using screen readers.

To solve this problem, we created Wirt Images Checker—a lightweight WordPress plugin designed to help website owners quickly identify images without proper alt text and improve their site’s accessibility and SEO.

Why Alt Text Matters

Alternative text (alt text) serves several important purposes.

First, it improves accessibility. Screen readers rely on alt attributes to describe images to visually impaired users. Without meaningful alt text, important visual information may become inaccessible.

Second, alt text provides additional context for search engines. While modern search engines use advanced image recognition, descriptive alt attributes still help them better understand the content and relevance of images.

Finally, alt text improves user experience in situations where images fail to load. Instead of displaying a broken image icon with no context, browsers can display the alternative text.

Although adding alt text is a simple task, many websites gradually accumulate hundreds or even thousands of images where this attribute is missing or left empty.

Common Challenges

Many WordPress websites contain content created over several years. During that time, images may have been uploaded by different authors using different workflows.

Typical situations include:

• Images uploaded without alt text.
• Empty alt attributes.
• Large articles containing dozens of images.
• Galleries created with Gutenberg blocks.
• Custom layouts built with Advanced Custom Fields or page builders.
• WooCommerce product descriptions containing numerous images.

Manually reviewing every page is both time-consuming and error-prone.

Introducing Wirt Images Checker

Wirt Images Checker focuses on one task: helping you discover missing image alt text as efficiently as possible.

Instead of trying to become a complete SEO suite, the plugin concentrates on image accessibility and content quality.

Its lightweight architecture keeps the interface simple while providing practical tools for content editors and website administrators.

Media Library Scan

One of the plugin’s primary features is scanning the WordPress Media Library.

The scanner searches for image attachments whose alt text is either missing or empty and presents the results in a clean WordPress-style table.

Each result includes useful information such as:

• Image preview
• Image title
• Caption
• Filename
• File size
• Dimensions
• Mime Type
• Date
• Pages where the image is used
• Direct link to edit the image

This makes it easy to update media files without searching through the entire Media Library manually.

Frontend Content Validation

Media Library data is only part of the story.

Modern WordPress websites often render images dynamically using Gutenberg blocks, custom fields, shortcodes, or theme templates.

For that reason, Wirt Images Checker also validates rendered page output rather than relying solely on stored attachment metadata.

This approach allows the plugin to inspect what visitors actually receive in the browser and identify images that appear without proper alt attributes.

Scan Before Publishing

One of the most useful features is the editor-side scanning tool.

When editing supported post types, users can scan the page before publishing and immediately discover images missing alt text.

This workflow is especially valuable for:

• Long-form articles
• Landing pages
• Product pages
• Tutorials
• Portfolio pages
• Pages containing galleries or sliders

Instead of manually checking every image, editors receive an instant overview of potential issues before making the content public.

Flexible Post Type Support

Every website is different.

Some projects use only Posts and Pages, while others rely heavily on custom post types for products, portfolios, services, events, or documentation.

Wirt Images Checker allows administrators to choose exactly which public post types should be included in scanning operations.

This flexibility keeps the plugin focused only on the content that matters for each individual website.

Built with WordPress Standards

The plugin follows WordPress development best practices.

It integrates naturally with the WordPress administration interface instead of introducing a completely custom UI.

The project uses familiar WordPress components such as:

• WP_List_Table
• WordPress Settings API
• AJAX actions
• WordPress Media functions
• Native capability checks
• Nonce verification

This makes the plugin feel like a natural extension of WordPress rather than an external application.

Lightweight by Design

Many SEO plugins include dozens of unrelated modules, dashboards, analytics, advertisements, and cloud integrations.

Wirt Images Checker takes a different approach.

The plugin focuses on one responsibility and performs it well.

Because it concentrates exclusively on image alt validation, it remains lightweight, easy to understand, and simple to maintain.

Accessibility Benefits

Accessibility is becoming increasingly important for organizations of every size.

Adding descriptive alt text helps:

• Visitors using assistive technologies.
• Users browsing with images disabled.
• Mobile users on unstable connections.
• Search engines indexing visual content.

Improving accessibility also contributes to a better overall user experience and demonstrates a commitment to inclusive web design.

SEO Benefits

While alt text alone will not dramatically improve rankings, it is an important part of a healthy technical SEO strategy.

Proper image descriptions can help search engines better understand page context and improve image indexing.

Combined with optimized image sizes, descriptive filenames, and well-structured content, alt text contributes to stronger overall website quality.

Who Is This Plugin For?

Wirt Images Checker is useful for:

• Bloggers
• Content editors
• Marketing teams
• Web agencies
• Freelance developers
• WooCommerce store owners
• Website administrators
• Accessibility specialists

Whether your website contains fifty images or fifty thousand, identifying missing alt text becomes significantly easier.

Future Improvements

The current version focuses on reliable detection and efficient workflows.

Future enhancements may include additional image quality checks, extended reporting, more detailed frontend analysis, and new validation tools while maintaining the plugin’s lightweight philosophy.

Final Thoughts

Maintaining image accessibility across a growing website can quickly become difficult, especially when multiple people contribute content over time.

Wirt Images Checker simplifies this process by helping you identify missing or empty alt attributes, review affected images, and fix issues before they impact accessibility or SEO.

Rather than replacing comprehensive SEO platforms, the plugin complements them by solving one specific problem extremely well.

If you’re looking for a straightforward way to audit image alt text in WordPress, Wirt Images Checker provides a practical, efficient, and WordPress-native solution that fits naturally into your existing editorial workflow.