What is web crawling?

[muralivijay]

Web crawlers are computer programs that scan the web, 'reading' everything they find

[anirban09P]

A crawler is a computer program that automatically searches documents on the Web. Crawlers are primarily programmed for repetitive actions so that browsing is automated. Search engines use crawlers most frequently to browse the internet and build an index. Other crawlers search different types of information such as RSS feeds and email addresses. The term crawler comes from the first search engine on the Internet: the Web Crawler. Synonyms are also “Bot” or “Spider.” The most well known webcrawler is the Googlebot.

[voizacinc]

A crawler is a computer program that automatically searches documents on the Web. Crawlers are primarily programmed for repetitive actions so that browsing is automated. Search engines use crawlers most frequently to browse the internet and build an index. Other crawlers search different types of information such as RSS feeds and email addresses. The term crawler comes from the first search engine on the Internet: the Web Crawler.

It looks for information on the Web, which it assigns to certain categories, and then indexes and catalogues it so that the crawled information is retrievable and can be evaluated.

[juliaalan]

Website Crawling is the automated fetching of web pages by a software process, the purpose of which is to index the content of websites so they can be searched. The crawler analyzes the content of a page looking for links to the next pages to fetch and index.

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