Images make WordPress websites more engaging, but they can also create hidden SEO and accessibility problems. When an image lacks alt text, screen readers cannot describe it to visually impaired users, and search engines lose an important clue about what the image shows. Over time, websites with hundreds or thousands of images often accumulate many files without alt attributes. Finding them manually can feel overwhelming. This guide explains why alt text matters, how to find images with missing alt text in WordPress, and how to fix them efficiently.
How AAMAX.CO Helps WordPress Websites Fix Image SEO Issues
Image optimization is one of many technical details that add up to stronger search performance. AAMAX.CO is a full service digital marketing company offering web development, digital marketing, and SEO services worldwide. Their team audits WordPress websites for missing alt text, oversized images, broken media, and other technical issues, then implements fixes that improve both accessibility and rankings. Through their search engine optimization services, they ensure every image contributes to a faster, more inclusive, and more search friendly website.
Why Alt Text Matters
Alt text, short for alternative text, is an HTML attribute that describes the content of an image. It serves three main purposes. First, it supports accessibility by allowing screen readers to convey image content to users who cannot see it. Second, it helps search engines understand images, which can improve visibility in Google Images and provide context for the surrounding page. Third, it appears in place of the image if the file fails to load.
Accessibility standards such as the Web Content Accessibility Guidelines (WCAG) require meaningful images to have text alternatives, making alt text important for both inclusivity and legal compliance in many regions.
Method 1: Use the WordPress Media Library
The simplest way to start is through the WordPress Media Library. Switch to list view, which displays details about each file. While WordPress does not include a built in filter for missing alt text, you can open each image to review the Alternative Text field. This approach works for small websites but becomes time consuming for larger libraries.
It is also important to know that alt text added in the Media Library does not always update images already inserted into posts. In the block editor, the alt text is stored with the image block, so you may need to update existing content separately.
Method 2: Use an SEO Plugin
Many WordPress SEO plugins help identify missing alt text. All in One SEO, Yoast SEO, and Rank Math analyze content and flag images without alt attributes in their on page checks. Some plugins also offer features that automatically generate alt text based on file names or titles. Automated alt text can be a starting point, but descriptive, manually written alt text is far more useful for users and search engines.
Method 3: Use a Dedicated Alt Text Plugin
Several plugins are designed specifically to find and manage missing alt text. These tools scan your media library and content, list every image without alt text, and allow you to add descriptions in bulk from a single screen. Some also use AI to suggest descriptions, which you can review and edit. This is often the most efficient option for websites with large media libraries.
Method 4: Crawl Your Website With an SEO Tool
SEO crawlers such as Screaming Frog, Sitebulb, Ahrefs Site Audit, and Semrush Site Audit scan your live website and report images missing alt attributes. These reports show exactly which pages contain the problematic images, which is especially useful because it reflects what users and search engines actually see. In Screaming Frog, for example, the Images tab includes a filter for missing alt text, and you can export the list for easy tracking.
Method 5: Use Browser Tools and Accessibility Checkers
For checking individual pages, browser extensions like WAVE and Lighthouse in Chrome DevTools identify images without alt text. Lighthouse's accessibility audit flags image elements lacking alt attributes. These tools are useful for spot checks and for verifying fixes after updates.
How to Write Effective Alt Text
Once you find images missing alt text, write descriptions that are helpful and natural. Follow these guidelines:
- Describe what the image shows concisely, typically in one sentence.
- Include relevant keywords only when they naturally describe the image.
- Avoid phrases like "image of" or "picture of", since screen readers already announce images.
- Provide context related to the page content.
- Use empty alt attributes for purely decorative images so screen readers skip them.
- Avoid keyword stuffing, which harms accessibility and can appear manipulative.
Prevent Missing Alt Text in the Future
Fixing existing images is important, but preventing the problem saves time long term. Create a content checklist that requires alt text for every uploaded image. Train contributors and editors on writing good descriptions. Use SEO plugin checks before publishing. Schedule regular audits, perhaps quarterly, to catch any images that slip through.
Other Image SEO Best Practices
While fixing alt text, consider other image optimizations. Use descriptive file names before uploading. Compress images to reduce file size. Use modern formats such as WebP or AVIF. Specify width and height attributes to prevent layout shifts. Enable lazy loading for images below the fold. These improvements support faster loading and better Core Web Vitals.
Conclusion
Finding images with missing alt text in WordPress is easier than it seems once you use the right tools. Whether you rely on the Media Library, SEO plugins, dedicated alt text tools, website crawlers, or accessibility checkers, you can quickly identify and fix gaps. Writing meaningful alt text improves accessibility, strengthens image SEO, and demonstrates a commitment to quality that benefits every visitor.
Want to publish a guest post on aamconsultants.org?
Place an order for a guest post or link insertion today.