5 Tools for On-page Image Usage Analysis

Image optimization is both vital for “search engine friendliness” and web accessibility. Let’s look at a few top tools that can help you analyze both the aspects of image proper usage:



1. Juicy Studio Image Analyser is a handy online tool that will look at each image on a given page and evaluate the following parameters:

* image width / height;
* alternative text;
* an URL to an image long description.
Note that some of the “errors” found by the tool should not necessarily be corrected (e.g. very seldom an image needs a long description URL), so use it rather for informational purposes than as a call to action.

2.Alt Text Checker (by Durham University) will list an alt text information next to each image found on the page:








3. Page Size Extractor will give you a quick idea of how the page images influence the page size and hence load time by giving:
* total number of on-page images;
* the largest image size;
* the total image size.









4. Web Developer FireFox: Toolbar offers an array of image analyzing tools:

* display alt attributes;
* display image dimensions;
* display image sizes;
* display image paths;
* find broken images;
* outline images missing alt attributes;
* hide images / background images;









5. Firefox Accessibility Extension offers a most useful feature summarizing all page images in the form of a handy table (the feature can found under “Text equivalents” => “List of images“). The table is extremely easy to use as (1) it highlights “the problematic” images and (2) it can be sorted by any of the following parameters:

* Image alt text;
* Image source link;
* Image width;
* Image height;