document: DEW : DNS-enhanced web for faster content delivery With a key component of latency on the Web being connection set up between clients and Web servers , several ways to avoid connections have been explored . While the work in recent years on Content Distribution Networks ( CDNs ) have moved some content ` closer ' to users at the cost of increasing DNS traffic , they have not fully exploited the available unused potential of existing protocols . We explore ways by which a variety of Web responses can be piggybacked on DNS messages . While we evaluated our idea in the Web context , the approach is generic and not restricted to Web responses . We propose an architecture for HTTP piggybacking in DNS messages and carry out a detailed performance analysis based on a trace-driven simulation study . Our architecture requires minimal extensions to existing protocols , utilizing only the allowed optional fields for these extensions . It is fully compatible and can coexist with the current Web .
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