How To Write Image Alt Text For SEO

Optimizing every aspect of your website for search engines is crucial in this digital age. SEO is a word that stands for “Search Engine Optimization”, an expression used to describe how search engines are used to increase the number of visitors to a website. Accessibility and SEO are two primary roles played by alt text through helping search engine better understand the image, context and thereby increasing visibility and accessibility of your site. This extensive guide will cover all the important aspects in writing effective alternative words that can boost your SEO.

Understanding the Importance of Alt Text

The main purposes of alt text include improving users’ access when they are visually-impaired as well as providing accurate descriptions for indexing images by search engines. When loading problems cause images not to display, alternative text shows up so that user experience is preserved.

Best Practices for Writing SEO-Friendly Alt Text

    Be Descriptive and Specific


    Begin by being very descriptive and specific about the particular image in question. For instance, instead of tagging an image of a lady reading a book as "woman", more descriptive alt-text would be "woman sitting on park bench reading suspense novel". By being specific, these tags help search engine optimizers in contextualizing the images which assist in effectual indexing.

     Use Relevant Keywords

    Make sure you include relevant keywords naturally into your alt text. This does not mean stuffing keywords but rather including them in a way that reflects the image. In case it’s an “SEO strategies,” then let your typical Alt Text read “SEO expert demonstrating link building strategies on a whiteboard.”

    Keep It Concisely Appropriate

    But while detail matters, so does conciseness. Do aim for around 125 characters when it comes to typical ALT texts; this length is enough for description without risking cutoffs of ALT texts within HTML codes; it should therefore be concise yet sufficiently descriptive.

    Avoid Keyword Stuffing

    Plaguing your alt text with excessive keywords can end up in a negative user experience and may be penalized by search engines. Key phrases should be used judiciously, ensuring that they are relevant to the given image and its context.

    Consider the Surrounding Content

    It is worth mentioning yet again that alt texts should correspond with words related to images in close proximity. If the image complements the text content on the page, then it’s highly recommended for alt-texts to either echo or supplement existing content but not contrasting it.

    Use Proper Formatting for Accessibility

     In order to ensure better accessibility, alternative expressions’ structure has got to be crafted properly. Do not use phrases like “image of”, or “graphic of” as screen readers automatically announce an image when this occurs; just start straight away with describing it.

Advanced Strategies for Optimizing Alt Text

Contextual Relevance Across the Site


Your images and their corresponding alternative words must remain consistent throughout your site. Bringing out such consistency increases thematical unity within your site thereby giving users a great experience while navigating from one web page to another.

Optimizing for Image Search

Alt text plays a big role in determining how visible you are in an image search result. Well thought-out alt texts help increase chances of images being found through their keywords hence increasing traffic flow towards one’s own website.

Localization and Language

If you have a website targeting different geographical regions, you may consider localizing your ALT-texts so that region-specific keywords can be employed as well as language nuances. This strategy greatly improves visibility in local searches thus enhancing overall site optimization efforts.

Common Mistakes to Avoid

Ignoring Alt Text: Skipping alt text can hinder your SEO and accessibility, reducing your site's reach and engagement.

    Non-specific Descriptions: When it comes to search engines or visitors, the generic ones do not add any value.

    Not Updating Alt Text: To keep being relevant and effective, you should have your alt text audited when content in web pages change.

To summarize, every site owner who is SEO concerned must learn how to write proper alt texts. In accordance with this, you can develop your website’s SEO rankings, enhance its accessibility and improve user-experience.

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