Final answer:
Search engines index text content, images, video content, JavaScript code, and meta tags from websites. This information is used to understand and categorize the content for search queries. When creating sites, this multimodal information is important for effective communication.
Step-by-step explanation:
Search engines compile and index a variety of information types from websites.
These can include: a) Text content, which is the main component they analyze for relevant keywords and information; b) Images, where they may use alt text and file names to understand the context; c) Video content, relying on titles, descriptions, and any available transcripts to index meaning; d) JavaScript code, mainly to understand the functionality and structure of interactive elements; and e) Meta tags, which provide structured metadata about a web page.
When creating a website, it is essential to consider how these elements contribute to the multimodality of the text, combining images, words, and potentially other media to create a balanced and effectively communicated message.