Crawling and indexing are closely related to each other, Crawling is the process in which Google spiders/bot do in-order to index a particular website.. Indexing is the result of crawling, Hope u got it..
Crawl The process of discovering and new and updated pages to be added to the google index. Index Google is like a huge book with indexes. It has a large number of words and sees the exact location of these words in each web page. Google indexes contents in header tags, ALT tags and etc ......
make it simple, crawl mean google visit your site, index mean google list your site you need to get crawl before indexed but get crawl doesnt mean that you will be indexed
Crawl : Crawling is the process in which Google spiders/bot do in-order to index a particular website.. Index: Indexing is the result of crawling, Hope u got it..
indexing adds more value to your rank in google while crawling is just a recognisation that google know about your link, but it doesnt add value to your rank.
Search engine spiders crawl your site to check your site, see what your niche is all about, your keywords etc... so that your site will be put to be indexed and properly ranked in Google search engine result pages.
Crwaling means sucking content without processing the result.Crawler are rather dump processes that fetch content supplied by web server answering request to request URLs delivering those content to the other processor.Example : Crwaling caches or directly to indexer. Indexing means the sense out of the retrieved content,storied the processing result in a document index.
hi search engines have huge database and to make search faster they use automated programs which search the database this is called crawling, and the programs called crawlers, bots, spiders, or robots.and the result after the crawling is indexing.
Google index:-Google index your all web pages which are include in your website. Google crawls:-Google crawls the site using a program - which is commonly know as "Google Bot". This program typically reads the url, reads the page and captures the content (after removing all programming related code, common words ).