Do landing pages need privacy policies?
In order to comply with the majority of data privacy laws, you must ensure your policy is both as clear and conspicuous as possible and easily accessible. Users should be able to find your policy without having to dig through your website or jump through other unnecessary hoops that could impede them from exercising their rights over their personal data. But at the same time, you don’t want your privacy notice to be obtrusive to the user experience.
As most websites follow this design convention, the footer is likely to be the first place users would look for a privacy notice and therefore the most intuitive sections to include your policy.