Tuesday 3 February 2009

Image Rank Factors

While most are conscious about ranking well in SERPs many overlook the need to optimise for image search. Image search should NOT be overlooked since it can bring in considerable amount of traffic. As an example, in my personal blog it’s really funny how the search term “Mila Jovovich” gives me the most search traffic and how a vast majority of that traffic comes from image search. Note too that I only posted about Mila Jovovich a couple of times. Goes to show that you just don’t know what will really bring you lots of traffic.

To make sure you don’t miss out on the traffic image search can bring (if you post images on your blog!) here are the factors you should take note of:

  1. text surrounding the image - Note that the distance of the text from the image also counts so it makes sense to place the image as near as possible to the related text.
  2. text of pages linking to the picture
  3. the number of websites containing the same or similar image - This helps determine relevancy of image to the search term
  4. size of image - Usually the image with higher resolution ranks better. Note though that users can filter search results by file size. The reasoning behind this may be more for the viewing pleasure since a higher resolution image looks better.
  5. Remember though that loading your page with lots of high resolution images may bog down your site causing it to have a longer loading time. Make sure you do not sacrifice usability and accessibility!
  6. link relationships between images - Images that are linked together and have related associated text will help determine relevancy
  7. frequency of image’s appearance in website - This pertains to logos and other recurring images. It helps determine importance and relevance of image to the website topic.
  8. face and name detection - The more faces on an image the higher it is usually ranked. On the other hand if a specific name is queried then a single face with the person searched for will rank better.

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