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What is ‘alt’ Attribute for images & How Important for Website Images

The Importance of Alt Text

The Importance of Alt Text

First We learn about What is ‘Alt’ attribute text for images. Alt text (alternative text) is a word or phrase that can be inserted as an attribute in an HTML (Hypertext Markup Language) document to tell Web site  viewers and Search Engine Web Crawlers about the Description or contents of an uploaded image on your web post. On every post you have uploaded on blog or website must have an ‘Alt’ Attribute on all uploaded images, it will be apply on all kind of image/photo either .jpg, gif, bmp, tiff, png etc.

An alt attribute starts out with the character sequence alt= and then contains the alt text within quotation marks.

  • The Following HTML Meta tag for inserting ALT text is:

     <img src="youmegeek.jpg" alt="Alternative description goes here"/>

When choosing alt text, it’s important to ensure that it tells viewers as much as possible about the image, using as few words as possible. This consideration becomes increasingly important as images get physically smaller. If the alt text is too long, it might take up too much space to fit inside the image rectangle (which is the same size as the image would be if it were visible). With bullet links that have external text labels, for example, alt text would only cause clutter. In cases of that sort, the alt text can comprise a single space between the quotes (alt=” “) or the two quotes can be placed right up against each other (alt=””).

  • What are alt tags and title tags? Please Check Below Example

          <img src=“image.jpg” alt=“image descriptiontitle=“image tooltip”/>

  • It is important and necessary to add alt text to the photos on your website for Below main reasons

 

Alternative text provides a textual alternative to non-text content in web pages. We will be discussing alternative text for images only, though the principles can be applied to media, applets, or other non-text web content.

  • It is read by screen readers in place of images allowing the content and function of the image to be accessible to those with visual or certain cognitive disabilities.

 

  • It provides a semantic meaning and description to images which can be read by search engines or be used to later determine the content of the image from page context alone.

 

  • If images fails to load – If for any reason an image does not render on a web page, the alt tag will display in place. It is displayed in place of the image in browsers if the image file is not loaded or when the user has chosen not to view images. This means visitors to that web page understand what image should be there even though they are unable to see it.

 

  • For Search Engines – Search engines, such as Google and Bing regularly crawl web pages. It is easy for them to understand text copy on a page, however, images are difficult to read. This is where alt text comes to play. Alt text is used to describe to search engines what the image is showing, allowing search engines to give users better results when performing an image search.

 

  • Alt text is a great place to include your main keyword to improve your image search ranking for that term. However, it is important to use appropriate text that actually describes your image. You should not include keywords if they are not relevant to the image being displayed, and if it doesn’t describe the image. If you do this, it could do more harm than good and negatively affect your website’s SEO.

 

  • For the visually impaired – The visually impaired tend to use screen readers in order to browse web pages. These screen readers will identify and interpret what is being displayed on their screen. Alt text is needed to explain and describe to people using screen readers what is on your page. For this reason, it is important to convey contextual information that will explain the image in more detail.

 

  • Every image must have an alt attribute. This is a requirement of HTML standard (with perhaps a few exceptions in HTML5). Images without an alt attribute are likely inaccessible. In some cases, images may be given an empty or null alt attribute (e.g., alt="").

Gurjit Singh is Microsoft Certified IT Professional. He likes to write about Computer Network, WordPress, Blogging Tips, SEO, Make Money Online, Computer Tips and Creating Tech Tutorials.
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