It is surprising, but there is one glaring search engine optimisation omission many website creators make, whilst they pursue link building and affiliate marketing, and that is the labelling of all images with SEO descriptive copy.
Search engine optimisation of your images is another tool in your box for making the most of your website. Images that are succinctly but relevantly described will certainly encourage search engines to place your website above others that are less informative. The keywords that you select for your images should be search engine friendly and that can mean separating the relevant keywords with a dash.
Another good SEO trick is to insert ALT tags into the link code of your images. Search engine optimisation of the descriptive copy complemented by ALT tags will help to maximise the SEO effect with regard to search engine crawlers as the ALT attributes enable extra key words to be used. Some people forget that search engines can only read images, they cannot see the pixels; consequently, the ALT tags provide another means of describing an image using additional key words.
It is tempting to stuff the ALT tags with numerous key words but there is a risk that the search engine crawlers will suffer from indigestion and reject your website. Of course, the fact that your website is being punished remains unbeknownst to you until you notice that fewer visitors are coming to your site.
In terms of etiquette, the ALT tag descriptions should accurately describe the content of the images and should be written in a way that a blind person using a screen reader can get a genuine feel for the image.
ALT tags on images are another easy way to maximise your website’s search engine optimisation.