
by Webster Jorgensen
For the fourth part of this series on Universal Search we will look at image search. In the past, Google would return some images at the top of the search results for queries like “explosion.” Later this year Google may start being more aggressive in how the push image results into the rest of the search results as well. Now that we know Google is returning these results, we need to know how to optimize for them and use them to acquire traffic.
Which keywords will return image results?
Google knows this by what people search for in their images search section of their site. If they see a certain keyword is searched for in the image search section of Google, they will start pushing these pictures out to the main results. Google also uses user data to determine when images should be returned in the main search results. If Google returns some images to the main search results and users click on the images, Google knows that those results are providing value and will return more of them.
Research for images and SEO
The most important part of optimizing for image search involves research. You have to think logically about what kind of keywords will return images and what people are looking for. Optimizing text pages is a lot different than optimizing images. In the education vertical for instance, a common keyword that would be used for a text page about medical assisting may be “medical assistant programs” or “medical assistant schools.” These keywords show intent to find a school and are also searched for frequently. However, these are keywords that are not likely to return image results. People are rarely looking for images of medical assistant programs. People often know what a “program” looks like and other kinds of content (text, video or news) will often provide a better result. Another possibility would be “medical assistant pictures.” This is more likely to return an image result, but the problem is very few people search for that term. The ones that do are probably graphic artists and web designers looking for stock images.
If I was going to optimize some images for medical assistant pages I would probably start with the keyword “how to become a medical assistant.” This is a keyword that is searched for fairly often and has great image search potential. Becoming a medical assistant requires a process. This process could be illustrated much like a flow chart. Lines, arrows and boxes letting the user know all the steps that need to be taken to achieve their goal.
Optimizing the image
Now that we have done our research and have a solid plan we can start optimizing the images. When creating the image you want to be sure and use the keyword in the images file name. Make sure and separate words by dashes. After creating the image I would name it:
how-to-become-a-medical-assistant.jpg
When coding the image into HTML, make sure and use the keyword again in the alt tag. This would look like this:

Not only will this help the image rank, but will also improve usability since the screen readers used by blind people use these alt tags to determine the subject matter of an image.
The next step is to create some text content on the page around the image. This copy should contain the keyword being optimized. This step simply involves performing the normal steps for optimizing a text page. When Google downloads that page they will use the text surrounding the image to help determine its subject matter.
Linking and images
The final step in optimizing for images involves linking to them. This step is a little tricky, but is a potent ranking factor image search. Normally, links will always go to a specific web page, but when optimizing for image search we want to have some links linking straight at the image itself. Here is an example on the PlattForm blog:
This link is going to the home page of the PlattForm site:
PlattForm Advertising
This link is pointing straight at the logo on the home page:
PlattForm Advertising
See the difference? Also notice that I used the text (anchor text) “PlattForm Advertising” in the link. This will help the logo rank for the term “PlattForm Advertising.” Using your keyword (in our example “how to become a medical assistant”) in the anchor text will help the image rank for that keyword.
One efficient way to create this kinds of links is to create an image site map. This would be a catalog of all of the images you want to perform well in search results. Simply create a list of links that link to the images, and of course, use the keyword in the anchor text.
Conclusion
Performing all of these steps will put you well on your way to acquiring traffic when Google returns image results in their main search results page. Using keywords in the file name, the alt tag, the surrounding copy, and proper linking is needed to optimize for a given keyword. However, the most important part is picking the right keyword. It is important that an image ranks for the right keywords. Keywords that are searched for frequently, embody the proper intent, and will provide value when served to the user. This is where good research and a little ingenuity can make all the difference.