Web scraping is the technique used to extract information from websites. This technique is used to transform unstructured data into structured data.
The use of web scraping is to extract the data from the websites. The extracted information is saved as a local file on your system, and you can store it to database in a table format as well. The web scraping software accesses the World Wide Web (WWW) directly using HTTP or a web browser. This is an automated process implemented using a web crawler or a bot.
Scraping a web page involves fetching the page and then extracting the data. A web crawler fetches a web page. A web crawler is a mandatory component in web scraping. After fetching, extraction takes place. You can search, parse, save the data into tables, and reformat the page.