Official: It’s Google Panda Update 23, Impacting ~1.3% Of Queries

Google has confirmed rumors of a Google update announcing on Twitter that they pushed out a Panda data refresh today impacting about 1.3% of English queries.

This would make for the 23rd Panda update since the first Panda algorithm was introduced on February 24, 2011. Since then we had 22 updates both to the algorithm and also to the index or data refreshes.

The latest impacted 1.3% of the queries, whereas version 22 impacted only 0.8% of English queries.

We did see signs of a major update a week ago but Google told us there was no such update. Then again, I reported early signs of another update at the Search Engine Roundtable and Google confirmed it on Twitter.

Honestly, I am surprised they released a data refresh right before Christmas. Last year Google promised they would not update the Panda algorithm or do data refreshes until after the holidays – this year, I guess they decided not to wait.

Here are all the releases so far for Panda:

1. Panda Update 1, Feb. 24, 2011 (11.8% of queries; announced; English in US only)
2. Panda Update 2, April 11, 2011 (2% of queries; announced; rolled out in English internationally)
3. Panda Update 3, May 10, 2011 (no change given; confirmed, not announced)
4. Panda Update 4, June 16, 2011 (no change given; confirmed, not announced)
5. Panda Update 5, July 23, 2011 (no change given; confirmed, not announced)
6. Panda Update 6, Aug. 12, 2011 (6-9% of queries in many non-English languages; announced)
7. Panda Update 7, Sept. 28, 2011 (no change given; confirmed, not announced)
8. Panda Update 8, Oct. 19, 2011 (about 2% of queries; belatedly confirmed)
9. Panda Update 9, Nov. 18, 2011: (less than 1% of queries; announced)
10. Panda Update 10, Jan. 18, 2012 (no change given; confirmed, not announced)
11. Panda Update 11, Feb. 27, 2012 (no change given; announced)
12. Panda Update 12, March 23, 2012 (about 1.6% of queries impacted; announced)
13. Panda Update 13, April 19, 2012 (no change given; belatedly revealed)
14. Panda Update 14, April 27, 2012: (no change given; confirmed; first update within days of another)
15. Panda Update 15, June 9, 2012: (1% of queries; belatedly announced)
16. Panda Update 16, June 25, 2012: (about 1% of queries; announced)
17. Panda Update 17, July 24, 2012:(about 1% of queries; announced)
18. Panda Update 18, Aug. 20, 2012: (about 1% of queries; belatedly announced)
19. Panda Update 19, Sept. 18, 2012: (less than 0.7% of queries; announced)
20. Panda Update 20 , Sep. 27, 2012 (2.4% English queries, impacted, belatedly announced
21. Panda Update 21, Nov. 5, 2012 (1.1% of English-language queries in US; 0.4% worldwide; confirmed, not announced)
22. Panda Update 22, Nov. 21, 2012 (0.8% of English queries were affected; confirmed, not announced)
23. Panda Update 23, Dec. 21, 2012 (1.3% of English queries were affected; confirmed, announced)