Architecture of Search Engine
Crawler--- automatically follows all of the links on each web page.
Spider---- downloads web pages like a browser
Indexer--- analyzes web pages downloadeds by the Spider and the Crawler.
Database--- a storage for downloaded and processed pages.
Results engine--- extracts search results from the database.
Web server---- a server that is responsible for interaction between the user and other search engine components.
The position of a site in the SEO can be divided in to ----
1. Internal ranking in seo
2. External ranking in seo
Crawler--- automatically follows all of the links on each web page.
Spider---- downloads web pages like a browser
Indexer--- analyzes web pages downloadeds by the Spider and the Crawler.
Database--- a storage for downloaded and processed pages.
Results engine--- extracts search results from the database.
Web server---- a server that is responsible for interaction between the user and other search engine components.
The position of a site in the SEO can be divided in to ----
1. Internal ranking in seo
2. External ranking in seo