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The Internet

W3C Gets Excessive DTD Traffic 334

eldavojohn writes "It's a common string you see at the start of an HTML document, a URI declaring the type of document, but that is often processed causing undue traffic to W3C's site. There's a somewhat humorous post today from that seems to be a cry for sanity and asking developers and people to stop building systems that automatically query this information. From their post, 'In particular, software does not usually need to fetch these resources, and certainly does not need to fetch the same one over and over! Yet we receive a surprisingly large number of requests for such resources: up to 130 million requests per day, with periods of sustained bandwidth usage of 350Mbps, for resources that haven't changed in years. The vast majority of these requests are from systems that are processing various types of markup (HTML, XML, XSLT, SVG) and in the process doing something like validating against a DTD or schema. Handling all these requests costs us considerably: servers, bandwidth and human time spent analyzing traffic patterns and devising methods to limit or block excessive new request patterns. We would much rather use these assets elsewhere, for example improving the software and services needed by W3C and the Web Community.' Stop the insanity!"

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