Googleโs changes to its algorithms by year.
Each year for the last 5 years Google has done revisions to its algorithm to promote better user experience. I am sure you have heard people speak of these changes but what were they and what was the reason behind these changes?
2009:
Googleโs โVinceโ update saw big brands get a boost in SERPs
2010:
Google released โCaffeineโ and revealed a new web indexing system
2011:
Google launched โPandaโ and it started enforcing and regulating its guidelines when it came to โthinโ content
2012:
Google launched โVeniceโ and saw โlocalโ search results ranking for more general and broad queries without a geo targeted modifier.
Google launched โPenguinโ โ and it started enforcing and regulating its guidelines when it came to low quality links. (Links not relevant, bad neighborhoods, etc.)
2013:
Google launched โhummingbirdโ which revealed a search engine that was more understanding of what users were searching for instead of just indexing results.