9 thoughts on “Module 1. Lesson 2. Crawling, indexing, and ranking

  1. Wow after a lot of searches I have understood the difference between crawling, index and algarythms. Thank you. All in less than 3minutes.

  2. On first impression, i had no idea on what is crawler in search engine terms. But after seeing the video, i got good insights. Thanks for the information

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