What is data scraping?
Data scraping definition, often mixed up with web scraping, is when you take any publicly available data, whether it is on the web or your computer, and import the found information into any local file on your computer. This data can sometimes also be channeled to another website. Data scraping is one of the most effective ways to get data from the web, and it does not require the internet to be conducted.
What is crawling?
Web crawling (or data crawling) is used for data extraction and refers to collecting data from either the world wide web or, in data crawling cases – any document, file, etc. Traditionally, it is done in large quantities. Therefore, usually done with a crawler agent.
Scraping vs crawling
To generally understand the main scraping vs. crawling differences, you need to notice that crawling means going through and clicking on different targets, scraping is the part where you take the found data and download it into your computer, etc. Data scraping means you know what you want to take and then take it (e.g., in web crawling/scraping cases, usually what can be scraped are product data, prices, titles, descriptions, etc.).
It’s important to understand the main web crawling vs. web scraping differences, but also, in most cases, crawling goes hand in hand with scraping. When web crawling, you download readily available information online. Crawling is used for data extraction from search engines and e-commerce websites, and afterward, you filter out unnecessary information and pick only the one you require by scraping it.
https://oxylabs.io/blog/crawling-vs-scraping
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