writers composing SEO friendly image alt tags on computer

What are SEO friendly image alt tags?

The alt tag on an image describes the content of the image and the function of the image on the page. So, if you are using an image of your logo, the alt text should say: “logo image for My Company Name”

Each of your images should have SEO friendly image alt tags, not only for SEO purposes but also because blind and visually impaired people won’t otherwise know what the image is about when using their screen readers.

Image alt tags and SEO

SEO friendly image alt tags are only one piece of on-page SEO and frankly it’s not even one of top five ranking factors, but it can have impact both positively and negatively … so don’t spam or over-optimize.

  • Search engines can’t “see” images so we help them with the image alt text
  • Most screen readers have a 125-character limit for alt text so keep your tags within that limit
  • It’s also a really good idea to make sure you rename your image file in line with the alt text. Don’t just accept the image name off your camera and upload it.
  • You will also want to be aware of the file size of your image. It’s a REALLY good idea to reduce the image file size of your images using a tool like JPEG Optimizer or Optimizilla so that your page load speed is not compromised.
  • When choosing the filename and image alt text keep them descriptive. It’s a good idea to read your image alt tag out loud back to yourself to hear how it will sound to the screen reader.
  • Image tags are also a great place to include related search terms. Here’s an example, if you’re optimizing your page for apartments in Raleigh NC, you would include terms like: Raleigh NC apartments, apartments Raleigh NC, and Raleigh apartments in your image alt tags.

The added benefit of writing alt text for your images is that your images may rank when someone looks up a topic.  As an example, if you have good alt text describing the Mayan ruins at Tulum in Mexico and someone is looking for a photo of what they look like, your image could rank in the search results so it’s worth incorporating a link back to your content in your image.


By using these ideas for your image alt text you’ll go a long way towards helping Google to understand the purpose of your content and its relevance and the more relevant they think you are the better your page will rank.

Please read the articles below to get more information on how image alt tags can help you improve your rankings.

Image Seo Alt Tag and Title Tag Optimization

Alt tags and title tags improve the SEO and accessibility of your website This article explains how and why you should optimize them.



Looking to rank better on Google Your guide on how to write good alt text for images for SEO and how to optimize your images for SEO to rank on Google

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