Google has confirmed that they ran a refresh to the
Google Panda algorithm on Wednesday, November 21st.
On November 20th, we asked Google about a Panda refresh –
since we were fairly confident there was some sort of update. Google told us
there was no update but google update would be coming within 7 to 10 days. The
update came a day later, not several days later.
This would make this the 22nd Panda refresh we’ve
tracked. The 21st Panda refresh was on November 5th and impacted about 1.1% of
English queries. This update, Google told us 0.8% of English queries were
affected to a degree that a regular user might notice.
Here are all the releases so far for Panda:
Panda
Update 1, Feb. 24, 2011 (11.8% of queries; announced; English in
US only)
Panda
Update 2, April 11, 2011 (2% of queries; announced; rolled out in
English internationally)
Panda
Update 3, May 10, 2011 (no change given; confirmed, not
announced)
Panda
Update 4, June 16, 2011 (no change given; confirmed, not announced)
Panda
Update 5, July 23, 2011 (no change given; confirmed, not
announced)
Panda
Update 6, Aug. 12, 2011 (6-9% of queries in many non-English
languages; announced)
Panda
Update 7, Sept. 28, 2011 (no change given; confirmed, not
announced)
Panda
Update 8, Oct. 19, 2011 (about 2% of queries; belatedly
confirmed)
Panda
Update 9, Nov. 18, 2011: (less than 1% of queries; announced)
Panda
Update 10, Jan. 18, 2012 (no change given; confirmed, not
announced)
Panda
Update 11, Feb. 27, 2012 (no change given; announced)
Panda
Update 12, March 23, 2012 (about 1.6% of queries impacted;
announced)
Panda
Update 13, April 19, 2012 (no change given; belatedly revealed)
Panda
Update 14, April 27, 2012: (no change given; confirmed; first
update within days of another)
Panda
Update 15, June 9, 2012: (1% of queries; belatedly announced)
Panda
Update 16, June 25, 2012: (about 1% of queries; announced)
Panda
Update 17, July 24, 2012:(about 1% of queries; announced)
Panda
Update 18, Aug. 20, 2012: (about 1% of queries; belatedly
announced)
Panda
Update 19, Sept. 18, 2012: (less than 0.7% of queries; announced)
Panda
Update 20, Sep. 27, 2012 (2.4% English queries, impacted, belatedly
announced
Panda
Update 21, Nov. 5, 2012 (1.1% of English-language queries in US;
0.4% worldwide; confirmed, not announced)
Panda
Update 22, Nov. 21, 2012 (0.8% of English queries were affected;
0.4% worldwide; confirmed, not announced)
Source from: tinyurl.com/bpjb4qt