CURRENT VERSION IS SEY 2003
For an updated discussion of cross linking, please refer to the current
version of the Search Engine Yearbook.
André le Roux
Multiple domains can be a plus, but
can also get you into trouble.
The natural thing to want to do is
to boost your link popularity by having lots of links between your different
domains. Cross linking sites in this way may seem harmless, but it is
a way of artificially inflating your link popularity. Thats also
the way the search engines see it. Google is rumored to have a PR0
penalty for cross linking. It stands for PageRank zero.
Google denies this, but many site
owners maintain that their PageRank was dropped to zero for excessive
cross linking. Its a thorny subject. A site for a holding company,
for example, will and should provide links to all associated companies
and they should all link back to the holding companys homepage.
Its also perfectly natural and acceptable to link to your personal
homepage from your business site.
So when does cross linking become
excessive? What about web-rings? Theres
no clear line. One strategy that works for me personally (so far) is
to build my cross linking into the editorial content of my site rather
than just cross linking from a menu
or the bottom of the page.
Also, if the content of the sites
are related in a way that a spider can pick up on (similar keywords),
then cross linking those sites is (seemingly) perfectly acceptable.
By the way, Im planning an experiment
with a couple of throw-away-domains just to see how far I can
go before Google pulls the plug. Hopefully that experiment will get
underway during 2003. If youre interested in the outcome, subscribe
to my EnginePaper newsletter. You can subscribe (free) with a blank
e-mail to email@example.com.
page is based on information contained in the Search Engine Yearbook 2003.
For more detailed search engine information & help, please refer to the
current version of the book.
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