Search Engines
Search Engine is a
program or software system that is designed to find documents or information
for specific keyword on World Wide Web (www). Examples- Google, Yahoo, Bing,
DuckDuckGo, Munax, Baidu etc.
Search Engines first
crawl and then index content (including link, keywords, data) from different
web pages of a website. A webpage can appear on Search Engine Result Page (SERP)
only after the page has been indexed by search engine. And when someone search
something on search engines, it shows relevant results on SERP.
Search engines can
re-crawl and re-index a webpage several times if required, the more frequent it
re-crawls and re-indexes a page the better rank the page should get.
Search Engine Result Page
SERP consist of list of results in response to a specific query. In
Google four types of list appear on its result page-
- Google Adwords
- Organic Ranking List
- Local Ranking List
- Related keywords or Local Semantic Indexing (LSI)
Organic ranking list and local ranking list done
with SEO where as Google adwords comes under Search Engine Marketing (SEM)
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