Crawling is the process by which Googlebot discovers new and updated content on websites. Indexing involves processing the crawled information to add quality content to Google's searchable index, analyzing elements like words, title tags, and alt attributes. Caching refers to Googlebot storing snapshots of web pages to display the most recent version available during website downtime or when updates are not yet indexed.

1. Difference Between Crawling, Indexing and Caching
Crawling: Crawling is the process of Googlebot ( Software ) finding/Scan new updated
content/images/videos etc..on websites and information sends back to Google.
Indexing: Indexing is the processing of the information gathered by the Googlebot from its
crawling activities. Once documents are processed, they are added to Google’s searchable index
if they are determined to be quality content. During indexing, the Googlebot processes the words
on a page and where those words are located. Information such as title tags and ALT attributes
are also analyzed during indexing.
Caching: Googlebot took a snapshot of web pages are updated in the last visit or crawl,
whenever website goes down/not yet indexed latest changes made in the website at the time it
will shows the last version which was saved.