In the field of search engine optimization (SEO), the concept of a “gateway page” refers to a page that acts as an intermediary between different sources of information. Sometimes, it can also refer to a redirect page for an advertisement displayed on a third-party website rather than the advertiser’s website. This page provides visitors with additional information without requiring them to leave the original site, while also offering them the option to visit the advertiser’s site via a link. For details and concrete examples, it is advisable to consult specialized resources in this area.