Understanding 3.2.3 Consistent Navigation
Criteria 3.2.3 states that a repeated navigation on a site must by default remain in a consistent order wherever it is present, unless adjusted by the user.
To ensure all users can navigate a site effectively and with ease of use, the navigation must remain consistent from page to page. So, for example, if the Contact page is the last item on your navigation, it must always remain the last item.
Sub-navigation and page navigation are permitted under this criteria, but they must remain consistent as well.
This criteria helps individuals with, "cognitive limitations, users with low vision, users with intellectual disabilities, and also those who are blind," it explains.
How HubSpot Helps
This is resolved naturally with HubSpot provided you are using the same navigation managed by its menu tool. You can then use these menus in global groups, such as your website header, to ensure consistency across your entire site.
In a HubSpot portal, if you scroll to the settings gear > website > navigation, you have the ability to set up standard menus to use across the site.