Abstract: A seamless affiliated link system includes providing a HTTP browser with encoded uniform resource locators (URLs) from bookmarks, manual entry, and non-HTTP clients, and sending the browser an identifier in response to requests for these URLs. It further includes a host server rewriting key (URLs) as a processing script. The processing script checks identifiers from the browser and referring website, thereby determining whether the requested URL is affiliated or non-affiliated. The processing script increases the search engine importance of key URLs, by performing affiliated processing in response to affiliated URLs, and processing the requested URL in response to non-affiliated URLs.