How to Remediate Alt Text on WordPress Sites

A missing `alt` attribute may look like a small content defect, but it can make navigation, instructions, product information, and calls to action unavailable to screen reader users. Knowing how to remediate alt text means more than adding a few descriptive words in the WordPress Media Library. You need to determine each image’s purpose, apply the correct alternative, and confirm that the fix reaches every place the image appears.

For most websites, this work supports WCAG Success Criterion 1.1.1, Non-text Content, which requires a text alternative for meaningful non-text content. It also reduces a common source of ADA and Section 508 exposure. The practical challenge is scale: images can appear in posts, pages, reusable blocks, galleries, menus, widgets, theme templates, sliders, PDFs, and custom post types. A dependable remediation process accounts for all of them.

Start With an Alt Text Inventory

Do not begin by changing every empty alt field you can find. An empty alternative is correct for some images, while a long description can be wrong for others. First, identify images that are missing an `alt` attribute, have empty alt text, or use vague or repetitive text such as “image,” “graphic,” or a file name.

A full-site accessibility scan is more reliable than reviewing the Media Library alone. WordPress can reuse one media item across many templates and content areas, while some images are inserted directly in page builder modules, CSS backgrounds, theme files, or custom HTML. The source of the issue determines the remediation path.

For each finding, record the page URL, image source, surrounding content, purpose, and responsible editor or developer. This turns a long error list into an actionable queue. Prioritize high-traffic pages, conversion paths, required public services, instructional content, and pages with image-based controls.

How to Remediate Alt Text by Image Purpose

The correct alt text communicates function and meaning, not every visual detail. Ask one question before writing anything: if this image were removed, what information or action would a user miss?

Informative images

An informative image contributes content that is not already available in nearby text. Its alternative should state the relevant message concisely. A photo accompanying an article about a campus construction project might use `alt=”Workers installing an accessible curb ramp outside the student center”` if that activity matters to the story.

Avoid starting with “image of” or “photo of.” Screen readers already announce that the element is an image. Describe the useful information, not the format.

Decorative images

A decorative image does not add information or functionality. Common examples include divider flourishes, background textures, repeated icons next to labeled links, and stock photos that merely fill space. These should generally use an empty alt attribute: `alt=””`.

This is not a missing fix. It intentionally tells assistive technology to skip the image. Do not use `alt=”decorative”`, as that still creates unnecessary screen reader output. Also, avoid omitting the attribute entirely. An absent attribute can cause some screen readers to announce the file name or URL.

Functional images and linked images

When an image acts as a button or link, its alt text must identify the destination or action. A magnifying-glass button should have `alt=”Search”`, not `alt=”Magnifying glass”`. A linked banner that opens a registration page should communicate the result, such as `alt=”Register for the 2026 community accessibility workshop”`.

If a link contains both visible text and an image that repeats the same purpose, the image is often decorative. For example, a linked icon beside the visible words “Download application” usually needs empty alt text because the link text already provides the accessible name.

Logos, badges, and text in images

A logo should usually identify the organization or product named by the logo. If the logo is linked to the homepage, the link’s accessible name should make the destination clear, such as “WP ADA Compliance Check home.” Whether that name belongs in the image alt text or another accessible label depends on the markup. The result matters more than forcing duplicate text into both places.

Images of text require careful review. If the image contains essential text, include that text in the alternative or, preferably, provide the same information as real HTML text. Marketing banners, event graphics, and social media-style graphics frequently hide deadlines, discount terms, or instructions in the image itself. Alt text can provide an equivalent short message, but it is not a substitute for accessible page content when users need to read, select, translate, resize, or interact with the text.

Charts, diagrams, and complex images

A short alt attribute cannot carry a complex chart’s full meaning. Use concise alt text to identify the chart and its primary takeaway, then provide an adjacent table, text explanation, or dedicated long description containing the underlying data and relationships.

For example, `alt=”Bar chart showing a 42 percent decrease in unresolved accessibility errors from January to June”` gives context. The page should still provide the monthly figures if those figures are relevant to the decision being made. The same principle applies to process diagrams, maps, infographics, and instructional screenshots.

Apply the Fix in the Right WordPress Location

For standard content images, select the image in the block editor and enter the alternative text in the image settings. The Media Library field can help establish a reusable default, but verify how your editor, theme, and page builder output that value. Updating media metadata does not always correct images already stored in existing block markup or builder data.

For featured images, inspect the rendered page. Many themes use a featured image as visual decoration while also displaying the article title. In that situation, repeating the title in alt text can be noisy. Other themes use featured images in archive cards where the image is the only clickable element, which requires a meaningful accessible name.

Developers should inspect custom templates, navigation elements, and components that generate image markup. CSS background images need special attention because they do not support an `alt` attribute. If a background image conveys content, move that content into accessible HTML, provide equivalent text nearby, or redesign the component so the image is not the sole carrier of information.

Validate the Remediation, Not Just the Field

Saving alt text is not proof of compliance. Review the published page and inspect the rendered HTML to ensure the image has the intended `alt` value. Then test the surrounding experience with a keyboard and a screen reader where possible. The accessible name of a linked image, button, or icon must make sense in context.

Automated scanning is especially effective for finding missing attributes, empty alternatives that may need review, suspicious file-name alternatives, and repeated issues across a WordPress installation. WP ADA Compliance Check can identify accessibility errors across published content, theme files, custom post types, widgets, menus, PDFs, and linked pages, giving teams a clearer remediation path than page-by-page spot checks.

Automation cannot decide whether an image is decorative or whether a chart explanation is sufficient. That requires human judgment. Treat scan results as the inventory and verification layer, then assign content decisions to people who understand the page’s purpose.

Prevent Alt Text Errors From Returning

Alt text remediation becomes expensive when it is treated as a one-time cleanup. Put requirements into the publishing workflow instead. Content authors should know that every newly uploaded image needs a purpose decision: informative, functional, decorative, or complex. Editors should review alternatives as part of page approval, especially for landing pages, public notices, forms, and instructional materials.

For larger teams, establish a short internal standard. Require meaningful alternatives for content images, empty alt attributes for decorative images, action-based labels for image controls, and nearby text equivalents for complex visuals. Include these checks in agency handoffs and theme development acceptance criteria.

Publishing controls and recurring scans provide additional protection because they identify issues before they become long-standing production defects. The goal is not to force a description onto every image. It is to ensure every visitor receives the information and functionality the image is intended to provide. That is the standard worth building into every WordPress publishing decision.