Indexing
Definition
Indexing is the process of a search engine storing a page and making it eligible to appear in search results.
Why It Exists
Search engines need an internal searchable representation of pages before they can rank them.
How It Fits Into The System
Crawling discovers and fetches pages. Indexing decides whether those pages enter the search index. Coverage reports indexing state.
Important Details
A page can be crawled but not indexed. Indexing depends on quality, duplication, canonical signals, robots directives, and other signals.
Example
Googlebot crawls /projects/weathr. If Google decides it is useful and indexable, the page can be stored in the index.