Kindly tell me that what is the difference between crawling, indexing and caching.Is all three terms related to website promotion.
Re: Difference between crawling, indexing and caching
No they are NOT related to website promotion. They are the steps that search engines do to get pages that they will use for their SERP. crawl is when they send spiders to look at your page and index and cach is when they store it in their data center to be called whenever a querry is relevant to it.