In the third and final part of SEO Best Practices, we will be discussing 301 redirects, blocking pages from search engines, Google search Wiki’s affect on rankings, the affect of negative links from “Bad Link Neighborhoods” & the importance of traffic on rankings.
The Meta Robots tag (noindex, follow) is usually a better option than robots.txt because “robots.txt do stop search engine crawlers from visiting a web page, but they do not keep them from being indexed.” They also create a black hole for link juice. Meta robots tags with noindex and follow parameters keep pages out of the search engine indices and allow link juice to be passed.
It is not recommended to spend any time on search wiki because it has very little impact, if any, on rankings. There has yet to be any evidence of global results. It could be helpful for spammy queries, but it is suggested that it may just be “another data source Google uses to separate it from its competition.”
“Link neighborhoods are a real thing, but the affect of links from bad neighborhoods on good neighborhoods is minimal if the links are not reciprocal.” Legitimate sites frequently receive spammy links, but this should not have a negative influence on your site, unless the bad links make up a “large percentage of the inbound links.”
The importance of traffic on rankings is another area that is analyzed. It is stated that “the metric visitors to a given site are not used to help determine ranking. While traffic and rankings correlate neither cause the other.” The more popular sites receives more links and the more links you have, will result in a higher ranking. It is also believed that the metric of “unique visitors” should not be counted on “nearly as much as raw visitors for comparing the traffic sent to a site from various sources or comparing the traffic growth from month to month.”
This concludes information on SEO Best Practices. If you would like to learn more about these practices, or read more detailed descriptions, please check out SEOmoz.