The EngineMaster Chart
 by Ian Cook

A Quick Reference Summary of What It Takes to Rank in the Top Three Search Engines

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General Indexing Guidelines
Search Engine Google Yahoo1 Bing
Number of title characters indexed2 89 1000+ 1000+
Title characters displayed in search results3 67 65 70
Title tag importance High High High
Meta description characters indexed 155 400 207
Meta description used in search results?4 Yes Yes Yes
Meta description characters displayed in search results 160 170 170
Meta description importance for rankings Indirect Indirect Indirect
Keyword meta tag indexed No No No
Keyword meta tag characters indexed None None None
Keyword meta tag importance to rankings None None None
Meta redirect considered spam? Likely Likely Likely
Meta robot tags supported noindex
nofollow
noodp
nosnippet
noarchive
unavailable_after:[date]
noimageindex
notranslate
noindex
nofollow
noodp
nosnippet
noarchive/nocache
noindex
nofollow
noodp
nosnippet
noarchive/nocache
Robots.txt supported Yes Yes Yes
Body text indexed on page Approx 1.5mb ...

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