Hello everyone please tell me what is google penalty....

A Google penalty is the negative impact on a website's search rankings based on updates to Google's search algorithms or manual review. The penalty can be a by-product of an algorithm update or an intentional penalization for various black-hat SEO techniques.

Google penalty means your site dropping ranks. It usually happens when over optimise your sites (high keyword density and such), spammy backlinks, duplicate contents, etc. Once your site is penalised, it may be hard to recover, thats why NEVER buy backlinks; spammy backlinks are among the main reason for google to penalise a site.

A Google punishment is the negative effect on a site's inquiry rankings in light of updates to Google's pursuit calculations or manual survey. The punishment can be a result of a calculation refresh or a purposeful punishment for different dark cap SEO methods.

When you do against Search engine guidelines it may violate your website, so there is possible to make Google penalty to penalize your website(it wont be avaialble of ranking in SERP).

A Google penalty means your site is either no longer listed on search results, or that your ranking for your targeted keywords has dropped dramatically.

A Google penalty means your site is either no longer listed on search results, or that your ranking for your targeted keywords has dropped dramatically.

A sanction from Google is reflected in a negative impact on the search ranking of a website because it does not comply with the updates of Google algorithms and / or manual review.