What is a Google Penalty?

[ritesh3592]

What is a Google Penalty?

[NealPatel]

A Google penalty is the negative impact on a website's search rankings based on updates to Google's search algorithms or manual review.

[atocloud]

You're probably familiar with penalties in professional sports. If a player does something unsportsmanlike, or violates the rules of the game, they are often penalized for their actions. Depending on how severe the infringement is, they may even be removed from the game, or suspended from playing for a period of time.
Google penalties are very similar to sports penalties. At their core, they're designed to punish websites that have done something wrong. These penalties aren't always handed out manually, and they may impact websites built by those who had no idea what they did wrong, but they can still greatly impact a site's performance in search results—and beyond.

[SteveGood]

Hi,

If you did black hat SEO technique for your website. Google penalize your website as per google SEO algorthim guideline.
Then the website ranking and traffic going down or website disappear from search result.