This past weekend I had the pleasure of participating in Buffalo's first WordCamp for WordPress users. Before my presentation I made it a point to sit in on the other sessions that were in the same track as mine.
When discussing SEO, all the sessions I saw mentioned only Google. The Google logo appeared throughout, Google's PageRank was discussed, Google search result screen captures were used, and so on.
The presenters for an SEO-specific session even went so far as to embed a video of Matt Cutts (from Google) in their presentation and declare that Matt Cutts stated that WordPress is the best platform for SEO.
For context, Matt Cutts appeared at a WordCamp in May, 2009 to discuss his search engine (Google) for an audience using a particular platform (WordPress). Matt even said, WordPress automatically solves a ton of SEO issues. Instead of doing it yourself, you selected WordPress
(at about 3:15 in the video). He's pitching his product to a particular audience to validate their technical decision (he's just saying they don't need to manually code these tweaks).
If while watching that video you heard Matt Cutts declare that WordPress is the best platform for SEO, then you are engaging in selection bias.
This same selection bias is also happening when developers work so hard to target Google and not any other search engines. If you convince yourself that Google is the only search engine because you don't see other search engines in your logs, then perhaps you are the reason you don't see those other search engines.
To provide context, this table shows the ratio of searches performed by different search engines in August 2012 in the United States. These are from comScore's August 2012 U.S. Search Engine Rankings report.
| Google Sites | 66.4% |
| Microsoft Sites | 15.9% |
| Yahoo! Sites | 12.8% |
| Ask Network | 3.2% |
| AOL, Inc. | 1.7% |
It's easy to dismiss 16% when you don't know how many searches that translates to.
More than 17 billion searches were performed in August 2012. Google ranked at the top (as expected) with 11.3 billion, followed by Microsoft sites (Bing) at 2.7 billion. The breakdown of individual searches per engine follows:
| Google Sites | 11,317,000,000 |
| Microsoft Sites | 2,710,000,000 |
| Yahoo! Sites | 2,177,000,000 |
| Ask Network | 550,000,000 |
| AOL, Inc. | 292,000,000 |
To put this another way, for every four (ok, just over) searches using Google, there is another search done in Bing. For every five searches using Google, there is another one done using Yahoo.
If your logs don't reflect those ratios in search engines feeding your site, then you need to consider if you are focusing too hard on Google to the detriment of other search engines.
Now let's take this out of the United States.
Considering Bing's partnership with the Chinese search engine Baidu, contrasted with Google's battles with the Chinese government, it might be a matter of time before Bing tops Google for Asian searches. Given the size of the Asian market (over half a billion users), if you do any business there it might warrant paying attention to both Baidu and Bing.
Related
- Selection Bias When Reviewing Browser Stats, March 13, 2011.
Update: May 15, 2013
Bing is now up to 17%, having taken almost all of that extra point from Google.
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