We can describe Google algorithm in simple ways as methods introduced by google to enhance or rank up in Google at the same time find out the spams out there which results in reducing the page ranking. In this blog, we will discuss the major algorithm introduced by google. The first major algorithm introduced by google was PANDA
PANDA
Panda was introduced by Google in 2011. The main highlights of the panda were content quality ranking for websites, rank downs the low quality, spammy, thin content, etc. For easy visibility, points are listed below
- Duplicate content
- Plagiarism
- Thin content
- User-generated spam
- Keyword stuffing
- Poor user experience

PENGUIN
Penguin was introduced by google on 2012. The main highlights of the penguin was factors based on links. Main points are listed below,
- links with poor and spammy sites
- links from the sites which are only created for seo link building activities.
- Links with topically irrelevant sites
- Paid links
- Links with overly optimized anchor text

HUMMINGBIRD
Hummingbird was introduced by the google on 2013.it was mainly depend on LSI keywords (Latent Semantic Indexing). It is used to understand the content on a webpage deeply. The main points are
- Exact-match keyword targeting
- Keyword stuffing
