Learn About Google algorithms in detail.

1. 1. Panda
Launch date: February 24, 2011
Duplicate, plagiarized or thin content; user-generated spam;
keyword stuffing
How to adjust: Run regular site checks for content duplication,
thin content and keyword stuffing.
2. Penguin
Launch date: April 24, 2012
Spammy or irrelevant links; links with over-optimized anchor
text
How to adjust: Monitor your link profile’s growth and run
regular audits with a backlink checker like
3. Pirate Update
Launch date: August 2012
Designed to prevent sites with many copyright infringement
reports, as filed through Google’s DMCA system, from ranking
well in Google’s listings.
4. Hummingbird
Launch date: August 22, 2013
Hummingbird helps Google better interpret search queries and
provide results that match searcher intent.

2. Designed to better focus on the meaning behind the words
How to adjust: Expand your keyword research and focus on
concepts, not keywords. Carefully research related searches,
synonyms and co-occurring terms.
5. Payday Update
Launched Date: June 11, 2013
Targeted at cleaning up search results for traditionally “spammy
queries” such as pornographic and other heavily spammed
queries.
6. Pigeon
Launch date: July 24, 2014 (US); December 22, 2014 (UK,
Canada, Australia)
Shows Local Search Results (Pigeon affects those searches in
which the user’s location plays an important part.)
7. Mobile
Launch date: April 21, 2015
Lack of a mobile version of the page; poor mobile usability
How to adjust: Go mobile and focus on speed and usability.
Google’s mobile-friendly test will help you see which aspects of
your page’s mobile version need to be improved.
8. EMD
Launch Date: Sep 2012
Exact keyword in domain

3. This has been eliminated but not exactly.
9. RankBrain
Launch date: October 26, 2015 part of Google’s
Hummingbird algorithm.
Lack of query-specific relevance features; shallow content; poor
UX
How to adjust: Optimize content for relevance and
comprehensiveness with the help of competitive analysis
10. Fred
Launch date: March 8, 2017
Thin, affiliate-heavy or ad-centered content
Fred targets websites that violate Google’s webmaster
guidelines. The majority of affected sites are blogs with low-
quality posts that appear to be created mostly for the purpose of
generating ad revenue.