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

[makoo]

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

[swaroop97]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links.

[dennis123]

Hi Friend,
Below are some common examples of, and solutions for, practices that will get your website penalized.

1. Link Discrepancies
2. Keyword Issues
3. Poor Content Readability
4. A Lackluster Design / Structure
5. Other Opportunities for Improvement

[marriageproblem]

Thanks for sharing such information. Agree with you.

[jayam]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links.

[SinelogixTechno]

Google Penalties & The Causes Of Them. Google may penalise your website for one of two reasons – using manipulative methods to increase your site's rankings or providing a poor experience to people who visit your site.

[nicksamson]

Google Penalties & The Causes Of Them. Google may penalise your website for one of two reasons – using manipulative methods to increase your site's rankings or providing a poor experience to people who visit your site.

Lead Routing Software | (https://www.leadangel.com/lead-routing/) Fuzzy Matching Algorithm (https://www.leadangel.com/fuzzy-matching/)

[swaroop97]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links.

[nicksavoia]

The use of black hat seo techniques can penalized a website.

[59cattery]

DMCA and redirect link to other site maybe

[swaroop97]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links.

[shimar456]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links

[dombowkett]

Webmaster which implement unethical methods for website promotion, websites got penalized by Google.

[shimar456]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links

[AMFan102]

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

A Google penalty is a negative impact on a website's search rankings when webmasters engage in practices that are against its guidelines. In short violate guidelines and spamming is the main reason.

[godwin]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links.

[Pluginpro]

Purchased or Rented Links.
Hidden Links.
Links to Suspicious Sites.
Internal 404s (broken inbound links)
Deceptive / Manipulative On-Page Tactics
Duplicate Content
Ad Heavy Page Layout
Outbound Spam Links
Too Many Links From Irrelevant Sources
Too Many Links From Low Quality Sources
Over Optimized Anchor Link Text

[mikecowell]

Buying links. Some swear it doesn't happen, but actual evidence is mixed. ...
Excessive reciprocal links. ...
Duplicate content. ...
Overusing H1 tags. ...
Internal 404s. ...
Links from sites in another language. ...
Keyword stuffed content. ...
Footer links.