Ask HN: What’s the Legality of Web Scraping?

Many students ask me whether it’s legally OK to scrape websites without using an API and use the data for their projects for my course. Note that the concern is less about what’s ethical and more about what’s legal. This will also help me in my research because these days some reviewers are raising this concern when they see authors used web scraped data.

Source: news.ycombinator.com