Google is constantly updating its algorithms to improve the results it provides to its users. Many of these updates are designed to close down the ways that black SEO exploits.

Below we introduce the most famous Google algorithms.

1) Panda algorithm

Launched on February 24, 2011

Fines: low content, duplicate content or super-literary content. User-generated spam, keywords

How it works: Panda assigns a so-called "quality score" to web pages. This score is then used as a ranking factor.

How to use this algorithm: Do regular site reviews to avoid duplicate content, low content, and overuse of keywords. To do this, you need software such as SEO PowerSuite.

2) Penguin algorithm

Launched on: April 24, 2012

Penalties: Spam or irrelevant links

How it works: This algorithm detects malicious links and spam and aims to identify sites that have useful links.

How to use this algorithm: Give your backlinks from reputable sites. Check the site history and make sure it is secure. Follow the principles of linking so that you do not have problems with Google.

3) Hummingbird chicken algorithm

Launched on: August 22, 2013

Fines: keyword density; Low quality content

How it works: This algorithm, according to the density of keywords used on the site, shows the search engine related topics related to those words according to the user search.

How to use this algorithm: Expand the quality of the keywords used and focus on the meaning of the text, not the keywords. Choose your keywords and synonyms carefully and enter the site.