Accessibility
List items such as <li> must be contained within parent <ul> or <ol>.
In this way, assistive technologies like screen readers will be able to announce them accurately: indeed, they tell the user the number of elements inside a list when they find one and if you do not write list elements correctly, they won't be able to work.
If list elements <li> are not contained in parent elements (<ul> or <ol>), SeoChecker will notify it.
Simply write the <li> elements within parent elements (<ul> or <ol>).
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