An FAQ page is a webpage dedicated to listing and succinctly answering frequently asked questions from website visitors.
FAQ pages have been around since before the modern commercial Web.
They originated on Usenet groups both as a navigational tool and as stand-alone curated content. Ecommerce websites adopted the format, especially since online buyers could not physically examine products or talk to a sales rep.
Unfortunately, FAQ pages have also been used for miscellaneous catch-all content pages or as band-aids for bad user experience.