Digital Marketing Handbook

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Inbound link 144


Increasingly, inbound links are being weighed against link popularity and originating context. This transition is
reducing the notion of one link, one vote in SEO, a trend proponents hope will help curb linkspam as a whole.

Technical


When HTML (Hyper Text Markup Language) was designed, there was no explicit mechanism in the design to keep
track of backlinks in software, as this carried additional logistical and network overhead.
Most Content management systems include features to track backlinks, provided the external site linking in sends
notification to the target site. Most wiki systems include the capability of determining what pages link internally to
any given page, but do not track external links to any given page.
Most commercial search engines provide a mechanism to determine the number of backlinks they have recorded to a
particular web page. For example, Google can be searched using
Google:link:http://www.wikipedia.org|link:wikipedia.org to find the number of pages on the Web pointing to http:/ /
wikipedia. org/. Google only shows a small fraction of the number of links pointing to a site. It credits many more
backlinks than it shows for each website.
Other mechanisms have been developed to track backlinks between disparate webpages controlled by organizations
that aren't associated with each other. The most notable example of this is TrackBacks between blogs.

References
[ 1 ]Lennart Björneborn and Peter Ingwersen (2004). "Toward a Basic Framework for Webometrics" (http:/ / www3. interscience. wiley. com/
cgi-bin/ abstract/ 109594194/ ABSTRACT). Journal of the American Society for Information Science and Technology 55 (14): 1216–1227.
doi:10.1002/asi.20077..
[ 2 ]Google's overview of PageRank (http:/ / http://www. google. com/ intl/ en/ technology/ )
[ 3 ]"Does Backlink Quality Matter?" (http:/ / http://www. adgooroo. com/ backlink_quality. php). Adgooroo. 2010-04-21.. Retrieved 2010-04-21.
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