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The process of web scraping can be quite taxing on the CPU depending on the site’s structure and complexity of data being extracted. Web scraping includes examples like collecting prices from a retailer’s site or hotel listings from a travel site, scraping email directories for sales leads, and gathering information to train machine-learning models. In addition to indexing the world wide web, crawling can also gather data. These internet bots can be used by search engines to improve the quality of search results for users.

Web scraping with worker threads in Node.jsĪ web crawler, often shortened to crawler or referred to as a spiderbot, is a bot that systematically browses the internet typically for the purpose of web indexing.

Our web crawler will perform the web scraping and data transfer using Node.js worker threads. In this Node.js web scraping tutorial, we’ll demonstrate how to build a web crawler in Node.js to scrape websites and store the retrieved data in a Firebase database. For more information, check out “ The best Node.js web scrapers for your use case. Node.js web scraping tutorialĮditor’s note: This Node.js web scraping tutorial was last updated by Alexander Godwin on to include a comparison about web crawler tools. He also follows the latest blogs and writes technical articles as a guest author on several platforms.

Jordan Irabor Follow Jordan is an innovative software developer with over five years of experience developing software with high standards and ensuring clarity and quality.