What is Alt Text?

Learn what alt text is, why it’s crucial for accessibility and SEO, and how to craft effective descriptions for your images.

alt text image

If you’ve ventured into the realm of SEO you’ve probably come across the term ‘alt text’ before.

What does it really mean?

Alt text, also known as text plays a vital role in the world of SEO by making your website more accessible and improving its visibility to search engines. It serves as an assistant that ensures both search engines and users, especially those using screen readers can comprehend your images.

Having a grasp of alt text is essential for boosting your websites SEO performance and ensuring it caters to all users. Whether you’re a SEO expert or just getting started mastering, alt text can greatly impact your sites reach.

Join us as we delve deeper into the significance of text why it matters and how you can excel in the competitive landscape of UK SEO.

What is Alt Text?

Definition of Alt Text

Alt text, short for alternative text, is a crucial element in web design and content creation that serves as a descriptor of images for search engines and users who rely on screen readers for navigating the internet.

Essentially, it’s text that can replace a visual. When an image can’t be displayed due to loading issues or when a user employs accessibility tools like screen readers, alt text is what’s read aloud or displayed in place of the image. This makes it an indispensable tool for ensuring your website is accessible to all users, including those with visual impairments.

Significance of Alt Text

Alt text plays a vital role in both accessibility and SEO (Search Engine Optimization). In terms of accessibility it guarantees that all users regardless of their capabilities can access the information conveyed by images. This inclusivity not expands your audience but also adheres to web standards and legal requirements for digital accessibility.

In the realm of SEO, alt text enhances your websites visibility on search engines. By providing descriptive text for images you assist search engine crawlers in comprehending your sites content and context better which can lead to improved rankings, in search results. Moreover crafted alt text can enhance the chances of your images being featured in Google Image Search directing more traffic to your site.

Tips for Writing Effective Alt Text

To make the most of text there are some key guidelines to keep in mind:

Be Specific and Detailed

Your alt text should provide a clear description of the images content and its significance on the page. Instead of saying “dog,” opt for something like “Adorable Corgi puppy enjoying playtime in the park.”

Keep It Brief

While ensuring accuracy it’s crucial to keep your text concise. Aim for around 125 characters or less to ensure that screen readers can fully capture the description.

Avoid Overloading with Keywords

While it might be tempting to stuff keywords into your text for SEO benefits this approach is discouraged and can negatively impact your sites search engine performance. Use keywords in a natural and moderate manner.

Steer Clear of Text in Images

Refrain from using images, for displaying text unless absolutely necessary. If you must use images ensure that the alt text reflects the exact content depicted.

Decorative Image Guidance

When using images that are purely decorative and serve no informational purpose consider using an empty alt attribute (alt=””) to indicate to screen readers that they can skip over these images.

By following these guidelines you can improve your websites accessibility. Also boost its visibility and ranking on search engines. Remember that alt text is one part of a complete SEO and web accessibility strategy but it serves as a crucial foundation for your efforts to be successful.

How to Add Alt Text

Including text for your images is essential for both web accessibility and SEO purposes. It ensures that your content is inclusive allowing impaired individuals to comprehend the visual aspects of your page.

Additionally it assists search engines in understanding and categorising your images potentially increasing the visibility of your website. Below are steps on how you can incorporate alt text across platforms.

Adding Alt Text in HTML

If you are familiar with HTML, adding text directly into your websites code is simple. Each image tag in HTML contains an attribute where you can input the alt text. Here is the basic format you will use:

<img src="your-image-file.jpg" alt="Descriptive text goes here">

Ensure that your descriptions are detailed yet concise. For example, if the image depicts a landscape describe the elements that capture the essence of the scene.

Remember, it’s best to avoid cramming keywords into your description, keeping it natural and detailed is the way to go.

Adding Alt Text on WordPress

WordPress, a used content management system (CMS) simplifies the process of adding alt text with its user friendly interface. Here’s how you can do it when uploading an image to a post or page;

  • Choose an image from your library or upload a new one.
  • Once inserted the Image settings panel will appear on the sidebar.
  • Type in your alt text in the Alt text box.
  • For images in place;

For existing images:

  • Select the image within your post editor.
  • Update the text in the sidebar and save your changes.

WordPress automatically includes the text in your pages HTML eliminating the need for manual HTML editing and making it accessible for users of all web development skill levels.

Adding Alt Text on Social Media Platforms

Social media platforms, like X, have prioritised accessibility by enabling users to add text to images. When posting an image on X follow these steps;

  • Before posting click on the Add description button, below the image preview.
  • Enter your text in the provided pop up window.

When you add text to your social media posts you’re not just making them more accessible to screen reader users but also increasing their chances of being seen by a wider audience.

Key Takeaways

  • Alt text, short for alternative text, is critical for making websites more accessible to visually impaired users and enhancing SEO by providing context to search engines.
  • Proper use of alt text ensures a broader audience can access the information conveyed by images, aligning with digital accessibility standards and potentially improving website rankings in search results.
  • Best practices for writing alt text include being descriptive and concise, avoiding keyword stuffing, and employing an empty alt attribute for purely decorative images.
  • Adding alt text can be done directly in HTML, through content management systems like WordPress, and on social media platforms, emphasizing the importance of universal accessibility and improved content discoverability.
  • Incorporating alt text is a foundational step in a comprehensive web accessibility strategy, crucial for both user inclusivity and enhanced SEO performance.


Developing proficiency in crafting alt text is a key stride towards enhancing the accessibility of your online content and improving its online visibility. By ensuring that your images are accompanied by succinct alt text you not only assist visually impaired individuals but also enhance your SEO endeavours.

Whether you’re coding in HTML managing your WordPress platform or interacting on social media platforms always bear in mind the importance of text. It’s a gesture that can yield substantial benefits, for both the inclusivity of your website and its search engine ranking. Embrace these practices today to witness the growth of your presence.

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