The Panda Update was a significant Google algorithm update which was first released in February 2011. Its name came from Google’s engineer, Navneet Panda, who invented the update.
Panda wanted to get rid of all the low-quality websites and make it possible for high-quality websites to climb up the Search Engine Result Pages (SERPs) to provide the best results to Google’s users.
To Google, high-quality means many things; some of the requirements being:
Panda puts an emphasis on the quality of both the content and backlinks. Therefore, if you were hit by Panda or if you want to prevent it, you should focus on: