How often is the Google algorithm changed?

[Nurielroobena7]

This is very difficult to say with certainty, but Google has really been stepping up their efforts in the last months with Panda and Penguin.

[smithgreen]

The obvious thing you notice in watching this is how brilliant all these people (Google)are.

[gaurav.solanki]

It is just like cleaning home. When ever they feel that home is getting dirty with Black hat SEO, they come up with some changes.

[nitinslash]

Google’s Panda Updates are designed to penalize sites with weak content and to reward sites with quality content.

Each of the 14 Panda Updates is an attempt to refine Google’s search engine results for the better. Google has around 46 Billion pages currently indexed and more than 80% of penalized websites are still struggling to recover from the update.

How to Get in Google’s Good Graces
1. Produce high quality Unique Content
2. Get rid of Low Quality pages
3. Avoid Duplicate Content and scraped pages
4. Become an Authority
5. Promote content over Social Media
6. Improve Bounce Rate
7. Improve User Experience
8. Avoid Keyword Flooding – use language that sounds natural and edit pages that break this rule
9. Vary Anchor Text – Use 5-10 different keywords and alternate between them
10. Focus on High Quality Backlinks, especially if you only have low quality ones

Google Panda Update Release Timeline

• February 24, 2011 – Panda 1.0: Thin content, content farms. hi ad-to-content ratio. Percentage of sites hit: 12%
• April 11, 2011 – Panda 2.0: Rolled Panda update out to all English language search results. Percentage of sites hit: 2%
• May 10, 2011 – Panda 2.1: No impact data released by Google, impact seemed to be very low, minor tweaks. Percentage of sites hit: data unavailable
• June 16, 2011 – Panda 2.2: Aimed to identify scraper/content duplicator/spam sites. Percentage of sites hit: data unavailable
• July 23, 2011 – Panda 2.3: Minor impact. Incorporated new signals to help Google distinguish between high and low quality content. Percentage of sites hit: data unavailable
• August 12, 2011 – Panda 2.4: Panda rolled out internationally for all languages except Chinese, Japanese and Korean. Percentage of sites hit: 6-9%
• September 28, 2011 – Panda 2.5: Unknown. No data available by Google. Some websites reported huge ranking losses and Google owned websites (YouTube, Android.com) went up in the search rankings. Percentage of sites hit: data unavailable
• October 9, 2011 – Panda 2.5.1: Percentage of sites hit: data unavailable
• October 13, 2011 – Panda 2.5.2: Percentage of sites hit: data unavailable
• October 19, 2011 – Panda 3.0: aka”The Unnoticed Update” intended to rectify websites whose rankings were unfairly punished by the original Panda update. Percentage of sites hit: data unavailable
• November 18, 2011 – Panda 3.1: Minor update. Percentage of sites hit: data unavailable
• January 18, 2012 – Panda 3.2: Data refresh-meant to address issues with previous updates. Percentage of sites hit: data unavailable
• February 27, 2012 – Panda 3.3: Data refresh-meant to make results more accurate. Percentage of sites hit: data unavailable
• March 23, 2012 – Panda 3.4: Data refresh. Percentage of sites hit: data unavailable
• April 19, 2012 – Panda 3.5: Minor update. Percentage of sites hit: data unavailable
• April 24, 2012 – Penguin Update: Penguin evaluates incoming links to see if your site involves link schemes intending to improve rankings
• April 27, 20121 – Panda 3.6: Minor update. Percentage of sites hit: data unavailable

[h20mysticshadow]

lately Google is very unpredictable.

[SEO Demon]

No one can predict when the next update will come. It depends on Google and their team to refrain search results whenever they feel that spammers are benefiting through the loopholes in their algorithms. Well, Google team works consistently to keep the spammers away and provide the users with the authentic results only.