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Image Alt Text Checker
by RegalSEO

Use the free image alt text checker to scan any webpage and instantly audit every image,
whether it has alt text, an empty alt attribute, or no alt tag at all.
Complete with image previews, URLs, load type, and dimensions.

Example: https://example.com/blog-post/
Free Unlimited Scans
Instant Image Audit
Alt Text Validation
How it works

Your Full Image Alt Text Report in Three Steps

Regal SEO’s image alt text checker fetches any live page and audits every image on it in seconds. Here’s how.
1

Enter Any Page URL

Paste the full URL of any publicly accessible webpage, a blog post, product page, homepage, or landing page. The image alt text checker fetches the live page directly, so results always reflect what’s actually on the page at the time of your scan.
2

Click "Check Images"

The tool retrieves the page’s full HTML, finds every image element, and evaluates its alt attribute to determine whether it’s present and populated, present but empty, or missing entirely. It also captures the image URL, a visual preview, loading behavior, and rendered dimensions for each image found.
3

Review Your Image Alt Text Report

Your report opens with an HTTP status badge and four summary counts, followed by a full image-by-image table covering every image on the page, with status indicators color-coded for quick identification of issues.
Reading your results

Every Data Point in the Image Alt Text Report, Explained

One URL. Complete image accessibility analysis. The Image Alt Text Checker by Regal SEO breaks every result into clear sections, showing exactly what each metric reveals and why it matters.

Total Images

Displays the total number of images detected on the scanned page, regardless of whether alt text is present.

With Alt Text

Shows the number of images that include descriptive alt text for better SEO and accessibility.

Empty Alt

Identifies images with an empty alt attribute, which is commonly used for decorative images.

Missing Alt

List images that do not have an alt attribute and may require optimization for accessibility.

Image Audit Table

Provides a complete breakdown of every detected image, including its preview, URL, alt text, status, and key details.

Total Images 1
With Alt Text 0
Empty Alt 1
Missing Alt 0
Image Audit Table View a complete list of detected images, including previews, URLs, alt text, status, and key details.
Why this tool

What Sets Regal SEO's
Image Alt Text Checker Apart

A more complete image accessibility audit combining alt text analysis,
visual previews, image metadata, and issue prioritization in a single report.

Three-Way Alt Text Classification

Most tools give you a pass/fail on alt text. This checker separates results into three categories: alt text present, empty alt attribute, and missing alt, so you know exactly what each image needs rather than just that something is wrong.

Visual Previews in Every Row

Each image in the report includes a thumbnail preview alongside its URL, alt text, and status. You can identify what an image shows without opening the source URL, making it faster to write accurate alt descriptions directly from the report.

Loading Behavior and Dimensions Captured

The Details column surfaces each image’s loading type (lazy or eager) and rendered dimensions metadata that matters for both performance auditing and understanding how crawlers may interact with deferred images.

Color-Coded Status Badges

Green for present, yellow for empty, red for missing status badges make issues immediately visible without reading through every row. Spot problems at a glance before diving into the details.

Free to Use, No Signup Required

Open the page, paste a URL, and get your full image report. No email address, no credit card, no free trial with an expiry date. Free every time.

Works on Any Publicly Accessible URL

Any live page, your own, a competitor’s, a client’s, can be scanned. Enter a full page URL and get a complete image alt text breakdown in seconds.
The basics

What Is Image Alt Text and Why Does It Exist?

Alt text (alternative text) is an HTML attribute that describes an image for screen readers and search engines. It helps improve accessibility, provides context about image content, and can contribute to image SEO.

The Image Alt Text Checker by Regal SEO identifies images with valid alt text, empty alt attributes, and missing alt text, making it easy to find and fix accessibility and optimization issues across any page.

What Is an Image Alt Text Checker
and What Can It Tell You?

An image alt text checker is a tool that scans any live webpage, finds every image element in the HTML,
and evaluates the alt attribute on each one, telling you which images are correctly described,
which are decoratively tagged, and which are missing alt text entirely.

SEO Image Optimization

Identify every image on a page that's invisible to search crawlers due to missing or empty alt text and prioritize which ones to fix first based on content relevance.

Web Accessibility Compliance

Audit pages for WCAG (Web Content Accessibility Guidelines) alt text requirements, distinguishing between intentional empty alt tags on decorative images and missing alt attributes that should be filled.

Content and Asset Auditing

See every image on a page in one place with previews, source URLs, dimensions, and loading behavior, making it easy to audit image assets without manually inspecting HTML source code.

Competitor Image SEO Analysis

Scan competitor pages to see how thoroughly they've optimized image alt text, and identify gaps in their image SEO that your own pages can address.

Frequently Asked Questions

Have questions about how SEO works or what to expect from Regal SEO? You’re not alone. Here we’ve compiled the most common queries from business owners like you. 

What's the difference between empty alt text and missing alt text?
An empty alt attribute (alt=””) is intentionally used for decorative images that don’t need a text description. A missing alt attribute means no alternative text has been provided, leaving search engines and assistive technologies without context about the image.
Yes. The report highlights images with missing or empty alt attributes, making it easy to identify potential accessibility problems and prioritize fixes that improve the experience for screen reader users.
Yes. Regal SEO’s Image Alt Text Checker is completely free to use. There are no accounts to create, no subscriptions, and no limits on how many pages you can analyze.
Yes. You can scan any publicly accessible webpage, whether it’s your own site, a client’s website, or a competitor’s page. Simply enter the URL, and the tool will generate an image alt text report.
Yes. Alt text is a key accessibility feature that allows screen readers to describe images to visually impaired users. Missing alt attributes can make content harder to understand and may create accessibility compliance issues on important pages.

Analyze Image Accessibility in Seconds

Get a complete image alt text report for any public webpage, including missing and empty alt attributes.
Run Image Audit

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