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Cat and Mouse: Content Delivery Tradeoffs in Web Access

  • Balachander Krishnamurthy, AT&T Labs - Research, USA
  • Craig E. Wills, Worcester Polytechnic Institute, USA

Full text:

Track: Performance, Reliability and Scalability

Web pages include extraneous material that may be viewed as undesirable by a user. Increasingly many Web sites also require users to register to access either all or portions of the site. Such tension between content owners and users has resulted in a "cat and mouse" game between content provided and how users access it.

We carried out a measurement-based study to understand the nature of extraneous content and its impact on performance as perceived by users. We characterize how this content is distributed and the effectiveness of blocking mechanisms to stop it as well as countermeasures taken by content owners to negate such mechanisms. We also examine sites that require some form of registration to control access and the attempts made to circumvent it.

Results from our study show that extraneous content exists on a majority of popular pages and that a 25-30% reduction in downloaded objects and bytes with corresponding latency reduction can be attained by blocking such content. The top ten advertisement delivering companies delivered 40% of all URLs matched as ads in our study. Both the server name and the remainder of the URL are important in matching a URL as an ad. A majority of popular sites require some form of registration and for such sites users can obtain an account from a shared public database. We discuss future measures and countermeasures on the part of each side.

Citation

Krishnamurthy, B. and Wills, C. E. 2006. Cat and mouse: content delivery tradeoffs in web access. In Proceedings of the 15th International Conference on World Wide Web (Edinburgh, Scotland, May 23 - 26, 2006). WWW '06. ACM Press, New York, NY, 337-346.
DOI= http://doi.acm.org/10.1145/1135777.1135829

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