<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 1 May 2018, at 17:48, Viktor Dukhovni <<a href="mailto:ietf-dane@dukhovni.org" class="">ietf-dane@dukhovni.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><br class=""><br class=""><blockquote type="cite" class="">On May 1, 2018, at 4:25 PM, Grant Taylor <<a href="mailto:gtaylor@tnetconsulting.net" class="">gtaylor@tnetconsulting.net</a>> wrote:<br class=""><br class="">I wonder if it would be possible to approach TLD operators or and get a copy of zone data (even if it was an old point in time) for research / educational purposes.<br class=""><br class="">I'm fairly certain that some TLDs do offer such services.<br class=""></blockquote><br class="">Occasionally possible, but more often not. I expect the first success<br class="">some time this month, and I'll try to revive a stalled effort at another<br class="">that thought it might be possible. Two large ccTLDs have recently said<br class="">"no".<br class=""></div></div></blockquote><div><br class=""></div>If .br was not one of the two, add .br to the "no" column...</div><div><br class=""><blockquote type="cite" class=""><div class=""><div class=""><br class="">Not many are willing to convince their lawyers to make an exception, if<br class="">one is even possible under the applicable regulatory regime.<br class=""><br class="">It is interesting that even with the looming GDPR, France is able to<br class="">provide 30-day-old data for unrestricted download and .SE provides<br class="">fresh data, while others are unable to provide either fresh or stale<br class="">data. There are perhaps contractual constraints with existing<br class="">registrants, and/or country-specific laws...<br class=""></div></div></blockquote><div><br class=""></div>Or concerns with WHOIS harvesting. </div><div><br class=""><blockquote type="cite" class=""><div class=""><div class=""><br class="">So for ccTLDs I mostly make do with secondary (partial) sources.<br class="">Coverage various, I now have around 75% or .NO DNSSEC domains,<br class="">but only 25% of .BR.</div></div></blockquote><br class=""></div><div>Of secondary sources, <a href="http://hostcenter.com.br/" class="">http://hostcenter.com.br/</a> managed to get 67% of the full .br zone, and at least 340k domains that are surely DNSSEC-signed. So it's possible to use imaginative ways to increase coverage when zone files are not available... </div><div><br class=""></div><div><br class=""></div><div>Rubens</div><div><br class=""></div><div><br class=""></div></body></html>