09/08/2026
A web crawler is a bot that visits and processes webpages to understand their content.
They are also known as:
• Crawlers
• Bots
• Spiders
• Spiderbots
Search engines use crawlers to discover and categorize webpages. Website owners can also use crawler tools, such as backlink crawlers or technical audit bots, to monitor site performance, analyze competitors, and improve SEO.
Learn how they work in our blog: https://social.semrush.com/3Vhwkne.