Test the alt attributes of images

Check alt attributes of images on a web page

Enter the link of the web page to check the alt attributes of images, detect empty ones, correct errors, and ensure perfect SEO optimization.

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Alt Attribute Checker

Why is it crucial to check alt attributes?

Hellotools offers an innovative tool for analyzing the alt attributes of images on your website. This tool is essential for webmasters, developers, and online accessibility experts. It examines image alt attributes in detail to ensure they comply with accessibility standards and SEO optimization. In today’s digital world, accessibility and effective SEO of images are fundamental for the success and visibility of your site.

Tool for checking alt attributes of an image on a web page

Our alt attribute verification tool is particularly useful in the following situations:

Web Accessibility: Ensure all images on your site are properly described for screen readers.

SEO Optimization: Improve the ranking of your images in search engines.

Web Standards Compliance: Verify your images adhere to current web standards for optimal performance.

To use our tool, enter the URL of the web page in the provided field. The results of the alt attribute analysis will immediately appear below.

This tool is a must-have for web professionals concerned with accessibility and efficiency of their site. It provides detailed information to help you optimize and make your images accessible.

Understanding the "alt" Attribute for Images

The "alt" (alternative text) attribute is essential for web accessibility and plays a crucial role in search engine optimization (SEO) for images.

Role of the "alt" Attribute

The "alt" attribute provides replacement text for images in situations where they cannot be displayed. This text helps search engines understand the content of the image, thereby facilitating its indexing and searchability.

Alt and Indexing

Alternative text enhances image optimization for search engines by providing relevant contexts and specific keywords, allowing images to be effectively featured in image search results.

Best Practices

Include accurate and concise descriptions in the "alt" attribute, using relevant keywords for the content of the image. Ensure that each "alt" is unique and matches the context of the image on the page.

Errors to Avoid

Avoid generic descriptions such as "image" or "photo." Do not overload the alternative text with keywords (keyword stuffing), which can be penalized by search engines. Do not leave the "alt" attribute empty unless the image is purely decorative.


The "alt" attribute is crucial for web accessibility. It allows users of screen readers to understand the content of the image. It is also helpful for users who have slow internet connections or have disabled image display in their browser.

Advanced Use of the "alt" Attribute

Here is an example of using the "alt" attribute in a "" tag to provide responsive images: Description of the small image
In this example, different images are provided for different screen sizes, and each image has its own alternative text.

Best tool for optimizing alt attributes of images for SEO

Advanced techniques to strengthen the alt attributes of images

Optimization of alt attributes is crucial for SEO and accessibility. A clear and descriptive alt attribute enhances image search engine optimization and facilitates accessibility for users with specific needs. It should be concise and relevant, avoiding overuse of keywords while being descriptive. Accuracy and relevance are essential for effective alt attributes.

Precision of Alt Attributes

Each alt attribute must accurately describe the content of the image, enhancing its relevance and search engine optimization.

Visibility of Alt Attributes

Visible and relevant alt attributes increase the understanding of images by search engines and screen readers.

Analysis of Alt Attributes

A thorough analysis of alt attributes ensures their effectiveness for SEO and accessibility.

Compliance of Alt Attributes

Ensure alt attribute compliance with SEO best practices for better overall image performance.

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What You Need to Know

Frequently Asked Questions About Alt Attributes

Alt attributes provide a textual description of images, which is crucial for users who rely on screen readers. They help understand the content of images in case of loading issues and enhance the overall accessibility of the site.

Alt attributes help search engines understand the content of images, which is essential for image SEO. A relevant alt description improves the ranking of images in search results and can increase site traffic.

Best practices for writing alt attributes include creating concise but descriptive descriptions, using relevant SEO keywords, avoiding phrases like "image of" or "photo of", and ensuring each image has a unique and relevant alt attribute.

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