What is a Primary Crawler?
A primary crawler is the main web crawler or bot that a search engine deploys to discover, crawl, and index content across the internet. It is responsible for systematically scanning websites and gathering data to build and update the search engine’s index.
This crawler serves as the central component of a search engine’s crawling infrastructure, ensuring that the most important or updated content is regularly retrieved and stored for ranking in search results.
How a Primary Crawler Works
Primary crawlers operate by:
Accessing websites through their URLs.
Downloading HTML content, images, scripts, and other page elements.
Following internal and external links to discover additional pages.
Sending the collected data back to the search engine’s servers for indexing and analysis.