Crawling

One is what one does when one is incapable of walking, either through age, drink, surrounding space or in need of a pay increase.

The other is an unforgivable act that a Geography Teacher did with me in a stock cupboard back in 1931.

Crawling involves reviewing of website ,indexing involves accepting the pages of submitted or reviewed sites

Crawling is the process wherein the Google bots visit and read the web pages. Based on the data generated during the process of crawling, search engine sorts and analyses the URLs to make the indexation decision. Indexing is the process of adding the web pages to the Google database.