Difference between index and crawl

Crawling - When Search engine Spider/crawler search your site in the Internet then the process called crawling.
Indexing - An index is another name for the database used by a search engine. It contains information on all the websites the search engine was able to find. If a website is not in a search engine’s index, users will not be able to find it using that search engine. Search engines regularly update their indexes.
 
Index: After the completion of the crawling process the result is placed in the Google index. It means the web page is listed with the SERPs


Crawl: When Google visits to find the pathway to your web page. This procedure is completed by the Google crawling spider. :rolleyes:
 
Crawling is the process of reading through your webpage source by search engine crawlers or spiders and provide your webpage with a cache certificate. Indexing refers to the storing of webpage in search engine database after it has been successfully crawled by spiders.
 
The page may change in design before they crawl and then reindex the new page hence the term cache is used as almost a caveat to say that the page may've changed since they crawled it.
If your webpages aren't crawled then they can't be indexed. Making sure your site can be crawled by bots is a priority. Set up a Google Webmaster Tools account and then submit a XML sitemap to help Google crawl and index it.
Hope that helps.
 
Crawling is nothing but the crawler moves and finding your website adding to the database for indexing.
Indexing means the google bot crawling your website and indexing in the SERP.
 
Crawling is the process of an engine requesting — and successfully downloading — a unique URL. Obstacles to crawling include no links to a URL, server downtime, robots exclusion, or using links (such as some JavaScript links) from which bots cannot find a valid URL.
Indexing is the result of successful crawling. I consider a URL to be indexed (by Google) when an info: or cache: query produces a result, signifying the URL’s presence in the Google index. Obstacles to indexing can include duplication (the engine might decide to index only one version of content for which it finds many nearly identical URLs), unreliable server delivery (the engine may decide to not index a page that it can access during only one-third of its attempts), and so on
 
Crawling- Google sends its spiders to your website..
Indexing- Google visited your website and has added you to its database..

Caching- Google toook a snapshot of your website when it last visited and stored the data in case your website went down or if there are some any other issues.
 
Crawling - Is actually a process. In this process google sends a bot (generally known as Google Spider) to collect data from all internet data base.

Indexing - Indexing is a second process when google collect all data that it place that somewhere in a SERPs for specific keywords or brand name.
 
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