Checkpoints - Do not use meta refresh with a time limit
If the time interval specified is too short, some users - particularly those using screen readers or being destracted - will not have enough time to complete reading the information on the page. Sighted users may also be disoriented by the unexpected refresh and it can also cause mobile users to incur extra charges and download times.
Meta refresh tags have some drawbacks: There can be a usability problem if the redirect happens quickly (less than 2–3 seconds). This prevents users of older browsers from using the “Back” button. If the redirect happens quickly and goes to a non-existant page, your readers may get stuck in a loop without seeing any content other than a 404 page. Refreshing the current page can be confusing. If a user didn’t request the reload, they may become concerned about your site’s security.
Accessibility, Legal (WCAG 2, 2.2.1)
This checkpoints looks in a page to see if a meta element with a refresh value exists, if so it checks to see if it has a time limit, in case it will be flagged as an error. Please see below for an example: