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3idatascraping · 2 years ago

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Large-Scale Web Scraping: An Ultimate Guide

The Internet is a vast place. There are billions of users who produce immeasurable amounts of data daily. Retrieving this data requires a great deal of time and resources.

To make sense of all that information, we need a way to organize it into something meaningful. That is where large-scale web scraping comes to the rescue. It is a process that involves gathering data from websites, particularly those with large amounts of data.

What Is Large-Scale Web Scraping?

Large Scale Web Scraping is scraping web pages and extracting data from them. This can be done manually or with automated tools. The extracted data can then be used to build charts and graphs, create reports and perform other analyses on the data.

Large Scale Web Scraping is an essential tool for businesses as it allows them to analyze their audience's behavior on different websites and compare which performs better.

3 Major Challenges In Large Scale Web Scraping

1. Performance

Performance is one of the significant challenges in large-scale web scraping.

The main reason for this is the size of web pages and the number of links resulting from the increased use of AJAX technology. This makes it difficult to scrape data from many web pages accurately and quickly.

2. Web Structure

Web structure is the most crucial challenge in scraping. The structure of a web page is complex, and it is hard to extract information from it automatically. This problem can be solved using a web crawler explicitly developed for this task.

3. Anti-Scraping Technique

Another major challenge that comes when you want to scrape the website at a large scale is anti-scraping. It is a method of blocking the scraping script from accessing the site.

If a site's server detects that it has been accessed from an external source, it will respond by blocking access to that external source and preventing scraping scripts from accessing it.