Web scraping
Automated extraction of data from websites.
Web scraping is when computer programs automatically collect information from websites. Think of it like a robot visiting many web pages and copying down specific details, like prices, contact information, or article text.
This is useful for gathering large amounts of data quickly. For example, a company might scrape product prices from competitor websites to understand market rates.
Web scraping involves using software to extract data from websites, typically HTML content, and converting it into a structured format like a CSV file or database. This process automates the manual task of browsing and copying information.
Common techniques include using HTTP requests to fetch page content and parsing the HTML using libraries like Beautiful Soup (Python) or Cheerio (Node.js). While efficient for data collection, it raises ethical and legal concerns regarding terms of service, copyright, and the potential strain on website resources.
Web scraping is a key method for gathering the vast amounts of data needed to train large AI models. Recent discussions highlight the legal and ethical concerns surrounding the use of scraped data, particularly when it involves copyrighted material or personal information.
- OpenAI ChatGPT
- OpenAI's use of web scraping for training data has become a point of contention, with critics alleging it constitutes a significant appropriation of intellectual property.
- API
- An API (Application Programming Interface) is a structured way for programs
- Data mining
- Data mining is the broader process of discovering patterns and insi
The term 'web scraping' emerged as the internet grew and people sought automated ways to collect information from web pages. It's a descriptive term for the action itself.
You can try a simple form of web scraping by using your browser's 'Inspect Element' tool. Right-click on a webpage, select 'Inspect,' and look at the HTML code. You can manually copy text from the code, or use browser extensions designed for basic data extraction.
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Questions people ask
- Is web scraping legal?
- The legality of web scraping can be complex and depends on the website's terms of service, the type of data being scraped, and local laws. Scraping publicly available data is often permissible, but scraping copyrighted or private data can lead to legal issues.
- How is web scraping different from just copying and pasting?
- Web scraping is automated and can collect data from thousands of pages much faster than a human could manually copy and paste. It's designed for large-scale data collection.
First seen on Subvolts Sep 18, 2026. Updated Sep 25, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.