The blink tag element is deprecated and the use of blinking text considered a bad design practice. Blinking text is frowned upon by several usability and accessibility standards. Developers and designers should avoid providing flashing or blinking text and objects that flash or whose blink frequency is greater than three (3) times per second (WCAG 2) or more than two (2) times per second (Section 508). This also applies to content in video files and content animated using CSS. Such elements can cause seizures and distract users, especially with learning disabilities.
How can I resolve this issue?
Remove <blink> tags in pages, alternative methods such as <strong> tags and css can be used to emphasise text without a blinking design.
What topics do this checkpoint affect?
Accessibility (WCAG 2 Level AA, 2.2.2)
Can you explain how this checkpoint works?
The checkpoint examines the entire HTML source code of a page and reports any <blink> elements and style definitions that include blinking.