Web Tagging: A History

In the late 1990s, something interesting happened.Web counters showed the number of times a
Identifying visitors to a website became more difficult.particular image was requested. This later evolved into
This was mainly due to the development of searchinvisible images that used _JavaScript, which passed
engine spiders and robots; and web proxies and IPalong certain information about the page and the visitor.
addresses for large organizations and Internet serviceA web analytics company can process the
providers (ISPs).information, which extracts statistics that are useful to
To record visitors, log analyzers began tracking visitsthe organization.
by cookies and by overlooking requests from knownThe web analytics service company is also
spiders.responsible for assigning a cookie to the user. The
The use of web caches also became a problem incookie identifies a particular visitor from the first visit to
logfile analysis. For instance, if a person revisits a page,the next.
the second action or request would most likely beMost web analytics service companies offer both
retrieved from the browser's cache. Thus, the weblogfile analysis programs and page tagging solutions.
server will not receive a request. If this happens, theAn organization that seeks the services of a web
person's path around a certain website cannot beanalytics service company must know the
tracked. Configuring the server can beat caching, butdisadvantages and advantages of the two
this could lead to degraded performance andapproaches, in order to determine which one to
discourage the visitor.choose.
Eventually, concerns were raised about the accuracyMark Rapor is a Web Developer and Internet
of logfile analysis, particularly when caching wasMarketer. Visit us at Blue Sky Projects. Blue Sky
involved. There was also an intention to outsourceProjects is a full-service, custom web development
web analytics. These developments led to pageresource that understands the critical role that an
tagging.effective internet presence can play in the success of
More than a decade ago, web counters were oftenyour organization.
observed in web pages. Why was this significant?