Beginner's Guide to Alt Attribute “or Alt Text” Inside SEO

Ultimate Guide to Alt Attribute – The Complete Details With Examples

What is ALT TAG inside SEO (SEARCH ENGINE OPTIMIZATION), when is ALT TAG used inside SEO, and how is it used?

The full name of Alt text is Alternative text. It is also known as "alt description" and "alt attribute". It is a feature added to an image tag in HTML to provide a text alternative to search engines. 

Ultimate Guide to Alt Attribute

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What is Alt Attribute "Definition"

An alt tag, also known as "alt attribute" and "alt description," is an HTML attribute applied to image tags to provide a text alternative for search engines.

Alt Attribute Example? ( IN HTML VIEW )

An example of an Alt tag is given below:


<img src="https://your-photo/images/tajmahal-nature-historical-monument" alt= “Taj Mahal”/>    


Why is Alt Attribute Used?

The needed alt attribute defines an alternate text for an image if the image cannot be displayed. The alt attribute provides alternative details for an image if a user, for some reason, cannot view it (because of a slow connection, an error in the src attribute, or if the user uses a screen reader).

Alt Attribute “or Alt Text”

Importance of Alt Attribute

There are a few reasons why we should use alt attribute, which is the following:

1. Explain about an image; if it fails to load

Alt attribute is an alternate text of an image; it includes a short image description. Sometimes image fails to load due to poor internet or other reasons. So alt attribute helps us to get an idea of “what image is missing.”

2. Helpful for Blind persons and Screen readers

Using the alt attribute is very helpful for screen readers or blind people who can't see images. They read the alt attribute of a picture to make them understand what the image is about.

3. Image Alt Text is Important for SEO “SEARCH ENGINE OPTIMIZATION.”

Alt attribute contains a short description of an image; what is the image? Alt is also essential for SEO because search engines don't read media files, so it is compulsory to use alt attributes in an image to make understand the search engine crawler properly.

How long can an “Alt” attribute be?

100 characters

The text alternative for an image must be no more than 100 characters in length. 

How to Write Best Alt Text for Images

Descriptive: It should be relevant as well as descriptive. It should provide enough information for those who cannot see the images.

Short: Most screen readers truncate alt text if it is longer than 125 characters. So, it would be best if you kept it within the prescribed limit of characters. It should not be in the form of a sentence or a paragraph.

Use keywords: This allows you to include your keywords in the alt text, and thus you can signal to search engines that your page is highly relevant to the search query.

Avoid keyword stuffing: Do not use alt text to stuff keywords unrelated to the image.

Don't use images as text: The search engine cannot read the text in the form of images. So don't use pictures in place of words. If you do, describe what your image says in your alt text.

Don't use words like "image of," "picture of," etc. in your alt text: There is no need to use these words as alt text is already referencing an image.

Use longdesc: Use <img longdesc=""> for images that require a long description.

Don't neglect form buttons: A form on a website that uses an image as its "submit" button must have an alt attribute. Therefore, all image buttons must be provided with an alt attribute that describes the function of the button, such as "search," "sign up", "apply now," etc.


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