Search engine in the operating sequence is as follows: 1) Crawling, 2) Deep Crawling Depth-first search (DFS), 3) Crawling Fresh Breadth-first (BFS); 4) Indexing, 5) search. Search engines work by storing information about many web pages, they took from the WWW itself. These pages are retrieved by a web crawler (also known as a spider) - an automated web browser which follows every link it sees, an exception can be made using robots.txt. The contents of each page and then analyzed to determine how it should be...
