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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" . 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 .
177 million domain names are estimated to have been registered across all TLDs by the end of 2008 .
The largest TLDs by number of registered domains at the end of 2008 were: .com followed by .cn, .de, .net, and .org .
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) .
DNSSEC is deployed at the ccTLDs for Brazil, Bulgaria, the Czech Republic, Puerto Rico, Sweden, and Thailand . RIPE NCC signs the in-addr.arpa zones it is responsible for . The .gov gTLD is signed. 
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