Using WAVE to Test Accessibility of Links
- Checks for empty links, which seems more like a quality assurance than accessibility issue.
- Tests for various file extension in href, including media, office documents (Microsoft, Wordperfect and Open Office formats) and PDF documents.
List of checks related to links:
- Skip link
- : ALT text in AREA element
- Link that is an image has ALT text content
- Skip navigation link
- Spacer image missing alternative text
- Link with no content and there for does not appear in any rendering
- Link to excel spreadsheet
- Link text is not unique on page
- Link to OpenOffice.org document
- Link to PDF document
- Link to PowerPoint document
- Link to Word document
- Link to WordPerfect document
- link that is to an audio or video file and therefore transcripts or captions should be available
- Icons and labels are used to warn of links to different urls do not have unique text on the page
- Has a number of warnings about skip navigation links, headers should be used in place of skip navigation links
Step 1: Go the WAVE home page
- Go to the WAVE home page
- Enter in the URL of the page to test
- Select the button “WAVE this page!”
Step 2: View the icons on the page for link problems
- View the icon next links to identify links with accessibility problems
- Labels next to the icon indicates the text of any non-unique link text
Rules Evaluated with this Technique
Link text content must indeicate the target of the link.
Link text should be meaningful when taken out of context; therefore, links that point to different URIs should be unique.
An image that is the entire content of a link should be at least 16×16 pixels in size.
The text content of a link should be at least 4 characters in length when rendered graphically.
The alt text for images that are part of links should not be the same as the text content of the link.
The first link on a page should be a skip navigation link.
Internal links need to set
Small links should not be placed close together.