What is Google Image Search?
Google has a dedicated version of its search engine called Image Search which helps find images. Claiming to be the most comprehensive image search facility on the web, it has billions of images from websites already within its index. When searching for images, you can tailor the search for various sizes and choose a specific type of image you’re looking for, such as a photo, clipart or head shot.
When clicking on a image, the image will load as a preview in one frame, whilst showing the website the image is from in a frame below. This gives you the option of visiting the website or enlarging the image to full size. Google Image Search is popular. It actually gets more traffic than Yahoo, Window Live Search and Ask Jeeves.
Why is Google Image Search Important To Me?
As mentioned, Google Image Search gets more traffic than supposed major search engines in the UK, typically getting more visits than websites such as Amazon and MySpace (Source: Hitwise). This means Google Image Search is a potential source for traffic to your site, and although perhaps not as targeted as conventional search, implies that people are actively searching for what you offer.
The biggest reason to start optimizing for Google Image Search is that it is not as competitive as normal search, despite the great amount of traffic it can provide. Although ranking well in Google Image Search itself does not help your conventional search engine rankings, a byproduct of ranking well in Google Image Search could mean this will happen eventually because of the viral potential.
How Do I Get My Images onto Google Image Search?
You cannot submit images in the same way you can submit your website or sitemap to Google. Results are entirely shown by Google’s algorithm after indexing all websites it finds. Google’s imaging spider is called Google Image Bot. It crawls the web and indexes all of the pages it can find. Being a program, it cannot ’see’ images, so it has other ways of determining an image’s relevancy. These factors are:
1. Descriptive Image Name
When optimizing a website, we have talked about relevancy in other articles. It sounds obvious, but you have to talk about what you do. Integrating keyword phrases into this content is essential and makes a genuine difference to rankings. In a simplified way, this is no different for images.
Your images should be named after their subject. For example, if you want to come up in Google Image Search for David Beckham you should call it something along the lines of ‘david-beckham.jpg’ as opposed to something generic such as ‘photo1234.jpg.’ Likewise, if you have a folder full of David Beckham images, name the folder descriptively too.
2. Compliant Images
Creating accessibility compliant images works in hand with being descriptive and relevant. There are a number of criteria you have to meet to have an officially compliant image. These criteria are:
• A ’src’ attribute specifying the URL of the image
• A width and height declaration of the image in pixels
• An ‘alt’ attribute that describes the content of the image
• A ‘title’ attribute that contains a text description when hovering over the image
The ‘alt’ and ‘title’ tag are specifically important for optimization as they are way of building in keyword phrases, e.g. David Beckham. Below is an example of how the code and image should look for the David Beckham image:
3. Website Relevancy
Although important, PageRank isn’t as important with Image Search as with ranking on Google’s main search engine. Website relevancy counts for more, so if you had a whole website dedicated to David Beckham, this would be better than having a single page. If this isn’t possible, try to create a ‘theme’ within your website where you create more than one page about the subject matter. You should then inter-link these pages.
Website Relevancy is considered of growing importance within the SEO world and should be factored into your website wide optimization planning.
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