For once and for all: keywords meta tags are useless
May search marketers will recognize the scenario in which a (potential client) very proudly says they have followed all the SEO-rules in order. And then the first thing they mention is that all the meta tag keywords are there.
A second scenario will also be recognizable, when taking a look in the code of a website you find tens, maybe even hundreds of keywords stuffed onto the page, just to get Google to 'find the page' based on the keywords.
Many times it then is difficult to convince your potential client this is all useless. Now Google has made it 'official': Google doesn't use the "keywords" meta tag in their web search ranking.
In the video below Matt Cutts talks about the issue.
Google also posted some Q&A's on their Google webmastercentral blog. In those questions Google also adresses the question what it does do with the meta tags:
"Google does support several other meta tags. This meta tags page documents more info on several meta tags that we do use. For example, we do sometimes use the "description" meta tag as the text for our search results snippets".
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