Google Recommends Not Looking at Site Command Results
The site command (site:www.domain.com) is often used to determine the health of a web site in a search engine. The thing is, Google's site command is far from accurate and too many SEOs look at it too closely. We discussed this before and I just want to cover it again.
Googler, JohnMu, said in a Google Webmaster Help thread:
Focusing on the site:-query rough approximations will not lead to useful results.
Did he just say that the site command results are not useful? Are you surprised? I'm not. Like I said, we said this before.
For example, a site:www.seroundtable.com command returns for me over 17,000 pages. When I look at Google Webmaster Tools, I see indexed URLs at 9,921. So who do I believe?
We discussed the site command dozens of times here over the course of about 6 years. It is interesting to see how this has changed over the years.
Forum discussion at Google Webmaster Help.
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rustybrick in Google Optimization at July 15, 2009 8:04 AM
Comments (4)

Comments
LOL! So we're supposed to trust the information provided by Webmaster Tools rather than what we find in the search results.
Nice conundrum, Google. Maybe you should fix one or the other and then start advising people where to look for information about how many pages are indexed.
Posted by Michael Martinez at July 15, 2009 13:18