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An SEO was kind enough to share his HTML attribute SEO test results with the folks over at WebmasterWorld. He basically wanted to test and see if Google indexed and ranked certain HTML attributes or simply ignore them.
He tested the following attributes:
- File name
- Link text
- Image name
- Image alt
- Image title
- Anchor text
He conducted three tests and published the results at WebmasterWorld. Here are his three results set, but for more context, see the thread:
Set One:
- Filename: keyword1 is indexed (linked page not rank in serps)
- Link title: keyword2 is ignored
- Image name: keyword3 at the moment is ignored in search of the web, but this keyword is indexed in Google Images.
- Image alt: keyword4 is indexed
- Image title: keyword5 is ignored
- Anchor text: keyword6 is ranked and indexed
Set Two:
- Filename: keyword1 is indexed
- Link title: keyword2 is ignored
- Image name: keyword3 at the moment is ignored in search of the web, but this keyword is indexed in Google Images
- Image alt: keyword4 is ranked and indexed
- Image title: keyword5 is ignored (now this is indexed becouse it had writed at the comments)
- Link title: keyword6 is ignored
- Anchor text: keyword7 is ranked
Set Three:
- Filename: keyword1 is indexed
- Link title: keyword2 is ignored
- Image name: keyword3 not used in this test, the filename is a common name
- Image alt: keyword4 is ranked and indexed
- Image title: keyword5 is ignored
- Link title: keyword6 is ignored
- Anchor text: keyword7 is ranked and indexed
Forum discussion at Last word anchor text:keyword8 is indexed but this key isn't ranked! WebmasterWorld.
