Freitag, 1. Mai 2009 link
A few DNS/DNSSEC-related factlets; randomly collected.
VeriSign's DNS servers, (2 TLDs: .com, .net; and 2 roots: A, J) "together handle 35 billion queries from 5 million clients" on a "typical day" [1]. Most likely accurate as of late 2008.
VeriSign's DNS infastructure handles, as of Q4/2008, peaks of up to 50 billion queries per day [2].
177 million domain names are estimated to have been registered across all TLDs by the end of 2008 [2].
The largest TLDs by number of registered domains at the end of 2008 were: .com followed by .cn, .de, .net, and .org [2].
Number of times [create DNSSEC] was declared complete and ready for deployment by the responsible IETF working group: 3, by my count (RFC 2065; RFC 2535; RFC 4033ff).
Number of .com Domains with DNSSEC signatures, as of 2009-02-28: 251 (out of roughly 80 million) [2].
DNSSEC is deployed at the ccTLDs for Brazil, Bulgaria, the Czech Republic, Puerto Rico, Sweden, and Thailand [3]. RIPE NCC signs the in-addr.arpa zones it is responsible for [4]. The .gov gTLD is signed. [5]
References:
[1] http://cr.yp.to/talks/2009.03.03/slides.pdf
[2] http://www.verisign.com/static/044518.pdf
[3] https://itar.iana.org/
[4] https://www.ripe.net/projects/disi//keys/
[5] http://www.dotgov.gov/dnssecinfo.aspx
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