SEO glossary: ALT tag

 

 

 

In a nutshell: What is an ALT tag?

The Alt text (alternatively also known as Alt tag or Alt attribute) helps to mark images and graphics. It is used in conjunction with search engine optimization an important parameter and especially for onpage optimization indispensable.

 

What is an ALT tag?

Alt text is much more than just any element. Nowadays it is an important part of the HTML standards and alternatively known as Alt tag or Alt attribute. If an image or a graphic is embedded on a web page, the Alt
text is also set. It is indispensable to make a page accessible.

 

Ideally, the text describes 1:1 what exactly can be seen on the image or graphic. If an image or graphic is embedded on a web page, the alt text is also set. It is indispensable for making a page accessible. Ideally, the text describes 1:1 what exactly can be seen on the image or graphic.

 

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What is an ALT tag necessary for?

Thus, screen readers are also capable of reading Alt texts independently and read them aloud. This is a great advantage if, for example, a person with a visual impairment is sitting at the computer.

 

This tells the respective person what is shown on the image. In addition, if for some reason no images are read, the Alt text is displayed at this point.

 

 

What are the advantages of an alt tag in SEO?

Search engines use Alt Text to correctly match the content of an image. Although they index the image for the image search, they still depend on a meaningful description text. This is evaluated by the crawler and the image is listed accordingly in the search results. It is therefore all the more important that an image is provided with a reasonable and meaningful alt text.

 

Onpage optimization involves looking closely at the image and adding its content to the alt tag. If an alt text is missing, the visitor can leave the page again in the worst case, which results in a bad DEPARTURE RATE can have as a consequence. So if you label your images sensibly with alt texts, you can definitely generate traffic from image search in the long run.

 

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Where and how is the alt tag inserted?

Alt texts are a direct part of the HTML source code and are located right next to the corresponding image link.

 

The following is an example:

 

<img src=“/img/dateiname.jpg“ alt=“Relevanter Alt Text“>

 

The alt text is entered directly after the "alt" tag.

 

What content should an ALT tag have?

There are no limits in terms of description and content of an image. However, webmasters should keep in mind to describe an image as precisely and concisely as possible. For example, if the image shows a vanilla sundae with cream, the image can also contain the alt text "Vanilla sundae with cream". A short and precise description.

 

Large graphic areas such as background graphics, on the other hand, do not require an Alt Tag and can be left blank.

 

Tip: If targeted SEO measures are carried out on a subpage, it makes sense to also add the central keyword to the alt text. This gives plus points in terms of search engine optimization.

 

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Conclusion on ALT tags

Alt text describes an image or graphic and is quite useful for increasing the search engine friendliness of a page. But also in terms of accessibility, impaired people with screen readers get the opportunity to learn more about content of images. Alt text should be short, concise and relevant.

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