How Web Scrapers Work?

Web Scrapers can extract all the data on particular sites or the specific data that a user wants. Ideally, it’s best if you specify the data you want so that the web scraper only extracts that data quickly. For example, you might want to scrape an Amazon page for the types of juicers available, but you might only want the data about the models of different juicers and not the customer reviews. 

So, when a web scraper needs to scrape a site, first the URLs are provided. Then it loads all the HTML code for those sites and a more advanced scraper might even extract all the CSS and Javascript elements as well. Then the scraper obtains the required data from this HTML code and outputs this data in the format specified by the user. Mostly, this is in the form of an Excel spreadsheet or a CSV file, but the data can also be saved in other formats, such as a JSON file.

What is Web Scraping and How to Use It?

Suppose you want some information from a website. Let’s say a paragraph on Donald Trump! What do you do? Well, you can copy and paste the information from Wikipedia into your file. But what if you want to get large amounts of information from a website as quickly as possible? Such as large amounts of data from a website to train a Machine Learning algorithm? In such a situation, copying and pasting will not work! And that’s when you’ll need to use Web Scraping. Unlike the long and mind-numbing process of manually getting data, Web scraping uses intelligence automation methods to get thousands or even millions of data sets in a smaller amount of time. 

Table of Content

  • What is Web Scraping?
  • How Web Scrapers Work?
  • Types of Web Scrapers
  • Why is Python a popular programming language for Web Scraping?
  • What is Web Scraping used for?

If you are coming to a sticky end while trying to collect public data from websites, we have a solution for you. Smartproxy is a tool that offers a solution to deal with all the hurdles with a single tool. Their formula for scraping any website is: 40M+ pool of residential and data center proxies + powerful web scraper = Web Scraping API. This tool ensures that you get the needed data in raw HTML at a 100% success rate.

With Web Scraping API, you can collect real-time data from any city worldwide. You can rely on this tool even when scraping websites built with JavaScript and won’t face any hurdles. Additionally, Smartproxy offers four other scrapers to fit all your needs – enjoy eCommerce, SERP, Social Media Scraping APIs and a No-Code scraper that makes data gathering possible even for no-coders. Bring your data collection process to the next level from $50/month + VAT.

But before using Smartproxy or any other tool you must know what web scraping actually is and how it’s done. So let’s understand what Web scraping is in detail and how to use it to obtain data from other websites.

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What is Web Scraping?

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How Web Scrapers Work?

Web scraping is an automatic method to obtain large amounts of data from websites. Most of this data is unstructured data in an HTML format which is then converted into structured data in a spreadsheet or a database so that it can be used in various applications. There are many different ways to perform web scraping to obtain data from websites. These include using online services, particular API’s or even creating your code for web scraping from scratch. Many large websites, like Google, Twitter, Facebook, StackOverflow, etc. have API’s that allow you to access their data in a structured format. This is the best option, but there are other sites that don’t allow users to access large amounts of data in a structured form or they are simply not that technologically advanced. In that situation, it’s best to use Web Scraping to scrape the website for data....

Types of Web Scrapers

Web Scrapers can extract all the data on particular sites or the specific data that a user wants. Ideally, it’s best if you specify the data you want so that the web scraper only extracts that data quickly. For example, you might want to scrape an Amazon page for the types of juicers available, but you might only want the data about the models of different juicers and not the customer reviews....

Why is Python a Popular Programming Language for Web Scraping?

Web Scrapers can be divided on the basis of many different criteria, including Self-built or Pre-built Web Scrapers, Browser extension or Software Web Scrapers, and Cloud or Local Web Scrapers....

What is Web Scraping Used for?

Python seems to be in fashion these days! It is the most popular language for web scraping as it can handle most of the processes easily. It also has a variety of libraries that were created specifically for Web Scraping. Scrapy is a very popular open-source web crawling framework that is written in Python. It is ideal for web scraping as well as extracting data using APIs. Beautiful soup is another Python library that is highly suitable for Web Scraping. It creates a parse tree that can be used to extract data from HTML on a website. Beautiful soup also has multiple features for navigation, searching, and modifying these parse trees....