Are your images invisible to Google? Scan any URL to find missing alt tags, empty attributes, broken images, and long alt text — and make your visuals work harder for your SEO.
Search engines are incredibly smart, but they still rely on text to understand the context of an image. Without descriptive Alt Text, your high-quality visuals are just "blank spaces" to Googlebot. Furthermore, Alt Text is essential for millions of users who use screen readers to navigate the web.
Ignoring your image metadata leads to compounding losses that grow with your content library:
The TechySEO Image Alt Checker provides a comprehensive breakdown of your page's visual health:
alt="" attribute entirely. These are your highest-priority SEO and accessibility fixes — they represent images that are completely invisible to search engines and screen readers.Alt text problems are among the easiest SEO issues to fix at scale once you know the pattern. Here's how to work through them systematically.
For every image flagged as missing an alt attribute, write a short (under 125 characters) description of what the image shows. Include your primary page keyword if it's naturally relevant to the image — avoid forcing keywords. In WordPress, edit images through the Media Library and fill in the Alt Text field. In HTML, add alt="your description here" directly to the <img> element. After updating, re-run this tool to confirm all images now have alt text. For e-commerce sites with hundreds of product images, use a bulk-edit plugin or CSV export to update alt text programmatically.
A broken image (returning 404) means the file was moved, renamed, or deleted without updating the HTML reference. Options: (1) Restore the original file to the original path, (2) Update the src attribute to the correct new path, (3) Remove the <img> element if the image is no longer needed. After fixing, check the page's CLS score — a previously broken image that now loads may shift layout. Add explicit width and height attributes to prevent layout shift if they're missing.
An empty alt (alt="") is correct for purely decorative images (spacers, background textures, ornamental dividers) that convey no information. For all other images — product photos, screenshots, diagrams, charts, infographics — an empty alt is an error. Review each flagged image: if it communicates meaning to a sighted user, write descriptive alt text for it. If it's truly decorative, the empty alt is intentional and correct. Label it as such in your CMS to avoid future confusion.
Long alt text gets truncated by screen readers and can look like keyword stuffing to Google. Edit flagged alt text to a single concise sentence that describes the most important element of the image. Remove any keyword lists, repetitive phrases, or full captions embedded in the alt attribute. If you want a longer description for accessibility purposes, use a figcaption element or a longdesc attribute instead.
Google uses both the image filename and alt text as signals for Google Images ranking. A filename like IMG_0042.jpg paired with alt text saying "blue running shoes" is a missed reinforcement opportunity. Where possible, rename image files to use descriptive, hyphen-separated keywords (e.g., blue-running-shoes-side-view.jpg). When renaming production image files, ensure you update all src references or create a redirect for the old URL to avoid creating broken image errors elsewhere on the site.
For a site with thousands of product images or blog assets, checking each one manually is a nightmare. A single developer update or a new content upload can leave hundreds of images "blind" to search engines.
TechySEO offers a professional-grade environment to manage your visual SEO at scale, ensuring your site remains both compliant and competitive.
Every image on your site should be an asset, not a liability. Give your visuals the "identity" they need to rank and convert. See the unseen. Master your Image SEO with TechySEO.
alt=""), not missing alt text. Decorative images include spacers, background textures, ornamental dividers, and design elements that convey no informational meaning. The empty alt tells screen readers to skip the image entirely, improving the experience for visually impaired users. Adding descriptive text to a decorative image is an accessibility error, not an improvement — it forces screen reader users to listen to descriptions of irrelevant visual elements. Reserve descriptive alt text for images that communicate information, context, or meaning to the user.seo-audit-dashboard-screenshot.jpg sends a clear topical signal that reinforces your alt text and surrounding content. A generic filename like IMG_20231104.jpg or image1.png contributes nothing. Use lowercase, hyphen-separated, descriptive filenames that accurately describe the image content. Avoid using underscores (Google treats hyphens as word separators; underscores are not reliably treated the same way). When renaming files, always update all src references or redirect the old filename to the new one.