Which link type should be avoided if direct reference to a site is not allowed?

The selection of external links is the most appropriate choice when direct reference to a site is not permitted. External links direct users away from the current website to another site, and if a direct reference is not allowed, utilizing such links may not be suitable as they could imply endorsement or visibility of the referenced content.

In situations where referencing another site directly is restricted, it is often better to use internal links, which connect pages within the same domain, as they do not reference outside content. Image links and affiliate links could also imply a connection or reference to another site, making them less ideal under these specific guidelines. By avoiding external links, the integrity and compliance with the restriction of direct references can be maintained.