Willem is a developer at NLnet Labs, a not-for-profit foundation dedicated to the development of open-source implementations of open standards. At NLnet Labs Willem is the lead developer of the C DNS utility library: ldns. Willem has implemented leading edge DNS functionality for ldns based on new open standards such as DNSSEC and DANE. Our getdns-api implementation utilizes ldns for processing DNS data. Another of NLnet Labs C-libraries, libunbound, is used for DNS resolving. Besides working on ldns Willem also maintains and develops the perl Net::DNS and Net::DNS::SEC modules and actively researches Path MTU black holes that hamper DNSSEC deployment.
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