It is a coding issue that is facilitating these results. Some older pages with an older configuration of the doc declaration show the alt tag on mouse-over.
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It is a coding issue that is facilitating these results. Some older pages with an older configuration of the doc declaration show the alt tag on mouse-over.
Last edited by LD; 10-15-2011 at 11:21 AM. Reason: add
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Not to blow my own horn, but way back when we ran this experiment. Perhaps it's time to update it?
post: alt and title attribute in img and a tags
Considering how much has changed in the world of browsers since then, perhaps so.
Did a quick search last night for a table of comparisons re. different browsers/versions handling of these attributes; best I found was from 2003!
Image optimization is the processing of compressing (or reducing the file size) of graphics (especially photographs) for display on web pages.
When you view a webpage on the internet, copies of all the graphics used to display the page are downloaded and stored temporarily on your computer. If the web page you are viewing contains a lot of photographs (eg, in photo galleries) the amount of time it will take to fully display the page will depend on the optimized file size of all the photos.
Photo files from digital cameras by default use a very high resolution (the "pixels") to ensure that the image is very sharp when it is printed. This means these files (usually jpg's) from digital camers are about 2-3 mb in size. These jpg's need to be optimized before they are displayed on a web-page, where the high resolution required by printing isn't an issue.
While we cannot argue with the explanation you give, @stylabrite, I believe you miss the point of the OP question: optimizing images for search. This relates to how well documented the images are within the pages. Do they have captions? Do they have title attribute text? Do they have alternate text? Are they in a context that relates to the images (i.e., surrounded by text that describes what's in the photo)? These are all things that help optimize images for search engines.
Couldn't have said it better myself. There may be some other coding issues to consider, but from an optimization point of view, you want them SEs crawling your images and recognizing all the keywords that go with them, which necessitates the captions, alternate text, and other descriptive image fields.Originally Posted by weegillis
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