What are the main reasons a website can be penalized by Google?

Bangladesh
May 29, 2019 5:30am CST
Google often penalized website .Many popular site suffered and band by google. Why Google do this.
1 person likes this
1 response
Aanshi Raghava
@Aansh13 (11405)
• New Delhi, India
29 May 19
I really don't have any idea about this... Really...??? Does this happen...???