The Crawler is a microservices which can be deployed i.e. using Docker. When the Crawler Component is started, it searches for a MCP and connect to it. By default the local host is searched for a MCP but you can configure one yourself. Every loader and parser microservice must read this crawl profile information. Because that information is required many times, we omit a request into the cawler index by adding the crawler profile into each contract of a crawl job in the crawler_pending and loader_pending queue.