The Importance of Alt Text: Enhancing Accessibility and SEO on Your Website

Did you know that adding alt text to your website's images can improve both its accessibility and SEO?

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By: Darren Coleshill on 9th May 2023, 5 minute read

Ensuring your website is accessible to all users, including those with visual impairments, is crucial.

One effective way to improve accessibility is by adding alt text to your website's images.

Alt text, short for alternative text, serves as a descriptive text that can be read by screen readers, helping visually impaired people understand the content of images.

Not only does alt text enhance accessibility, but it also plays a vital role in search engine optimisation (SEO) by helping search engines understand your website's content and rank it accordingly.

In this blog post, we'll explore the importance of alt text and provide you with practical tips on how to write and implement it effectively.

What is Alt Text?

Alt text is a brief description that provides alternative information about an image on a website. When a screen reader encounters an image, it reads the alt text aloud, enabling visually impaired users to comprehend the visual context. Additionally, search engines utilise alt text to index images accurately and display them in relevant search results.

The Importance of Alt Text

  1. Accessibility: Alt text is primarily intended to make websites more accessible to people with visual impairments. Including descriptive alt text ensures that everyone can understand and engage with the content, regardless of their abilities. It empowers visually impaired users to navigate your website and comprehend the purpose of each image.
  2. SEO Benefits: Alt text plays a significant role in SEO by providing search engines with valuable information about your website's content. Including relevant keywords in your alt text increases the chances of your images appearing in image search results. This can drive organic traffic to your website and enhance its overall visibility.

Writing Effective Alt Text

To make the most of alt text, here are some essential guidelines to follow:

  1. Be Descriptive: Ensure your alt text accurately describes the image and its purpose. Use concise language that conveys the essential details while being informative and engaging.
  2. Utilise Keywords: Incorporate relevant keywords in your alt text to optimise your images for search engines. However, avoid keyword stuffing and only include them if they are contextually appropriate.
  3. Keep It Concise: Alt text should be concise and to the point. Avoid lengthy paragraphs and stick to a sentence or two that effectively captures the image's essence.
  4. Avoid File Names: Refrain from using alt text that mirrors the image's file name. Instead, focus on providing meaningful descriptions that add value to both visually impaired users and search engines.

Adding Alt Text to Your Images

Implementing alt text on your website is a straightforward process. Most content management systems (CMS), such as WordPress, offer a dedicated field for alt text when uploading images. If you're not using a CMS, you can manually add alt text by editing the HTML code of your website.

How not to use Alt Text, Rishi Sunak was criticised for using Alt Text on his Tweets for using 'we're growing the economy'

“Adding alt text to your website's images is a simple way to improve both its accessibility and SEO. By following the tips above, you can write alt text that is both strategic and helpful.”

Alt text is an essential aspect of web accessibility and SEO optimisation. By incorporating descriptive alt text into your website's images, you make your content more accessible to visually impaired users and improve your site's visibility in search engine rankings. Remember to write concise, relevant alt text that accurately describes each image while incorporating strategic keywords. Doing so creates a more inclusive and user-friendly website that can attract a broader audience and enhance your online presence.

How We Can Help

If you need assistance maximising your marketing efforts and optimising your website's accessibility and SEO, please don't hesitate to contact our team of experts. We're here to support you in achieving

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Darren Coleshill


Darren Coleshill

Our leader in social media management, email marketing and CRM and Marketing Automation, Darren is responsible for The Marketing Eye being one of the few agencies in the UK able to offer full end-to-end customer journey management.

Campaign Manager / The Marketing Eye

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