SERP Indexing
A key element in the way search engine results are arranged and presented to a search engine user, after a successful search, is a process known as SERP indexing.
Search engine programs known as 'spiders' or 'web crawlers' continually browse the internet, creating copies of all visited webpages. The copied data then undergoes a contextual analysis and is stored in search engine databases to facilitate fast and accurate indexing when a contextually relevant search is carried out by a search engine user.
The primary means in accurate search engine indexing irrespective of media (online documents, video, graphics) is text-based.