Web scraping is a technique to fetch data from websites. While surfing on the web, many websites don’t allow the user to save data for personal use. One way is to manually copy-paste the data, which both tedious and time-consuming. Web Scraping is the automation of the data extraction process from websites. This event is done with the help of web scraping software known as web scrapers. They automatically load and extract data from the websites based on user requirements. These can be custom built to work for one site or can be configured to work with any website.
Uses of Web Scraping: Web scraping finds many uses both at a professional and personal level. Having different needs at different levels, some popular uses of web scraping are.
Brand Monitoring and Competition Analysis: Web Scraping is used to get customer feedback regarding a particular service or product so as to understand how a customer feels regarding that particular thing. It is also used to extract competitor data in a structural, usable format. Machine Learning: Machine Learning is a process of Artificial Intelligence in which the machine is allowed to learn and improve with its experience rather than being explicitly programmed. For that, a large amount of data is required from millions of sites which is extracted through web scraping software. Financial Data Analysis: Web Scraping is used to keep a record of the stock market in a usable format and hence employ the same for insights. Social Media Analysis: It is used to extract data from social media sites to gauge customer trends, and how they react to the campaign. SEO monitoring: Search Engine Optimization is the optimization of the visibility and ranking of a website among different search engines like Google, Yahoo, Bing, etc. Web scraping is used to understand how the ranking of the content over time. An there are so many other reasons to use Web Scrapping.
Techniques of Web Scraping: There are two ways of extracting data from websites, the Manual extraction technique, and the automated extraction technique.
Manual Extraction Techniques: Manually copy-pasting the site content comes under this technique. Though tedious, time taking and repetitive it is an effective way to scrap data from the sites having good anti-scraping measures like bot detection. Automated Extraction Techniques: Web scraping software is used to automatically extract data from sites based on user requirement.
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