ietf-dane

  * 4740 .com
  *  925 .page
  *  662 .org
  *  413 .net

  https://stats.dnssec-tools.org/tld-graphs/com.png
  https://stats.dnssec-tools.org/tld-graphs/page.png
  https://stats.dnssec-tools.org/tld-graphs/org.png
  https://stats.dnssec-tools.org/tld-graphs/net.png

  2010 - Root zone signed
  2012 - Base DANE specification
  2013 - First DANE SMTP draft, Snowden
  2015 - SMTP DANE TLS RFC
  2015 - DANE live at udmedia.de, mailbox.org, posteo.de, xs4all.nl, comcast.net, debian.org, freebsd.org, ...
  2016 - DANE live at web.de, gmx.de, transip.nl, domeneshop.no, ...
  2018 - one.com, ...

  1033606 one.com
   136407 transip.nl
   100893 domeneshop.no
    88794 loopia.se
    72402 infomaniak.ch
    38424 active24.com
    30972 vevida.com
    30549 antagonist.nl
    27595 webreus.nl
    26928 web4u.cz
    26122 zxcs.nl
    25001 udmedia.de
    17389 bhosted.nl
    15135 flexfilter.nl
    13863 onebit.cz
     9925 protonmail.ch
     5798 netzone.ch
     5597 previder.nl
     5461 soverin.net
     5058 zonemx.eu
     4803 mailplatform.eu
     3406 ips.nl
     3072 interconnect.nl
     2568 provalue.nl
     2084 nederhost.nl
     1932 spamcluster.nl
     1836 mailbox.org
     1673 nmugroup.com
     1445 yourdomainprovider.net
     1348 mijnspamfilter.nl
     1326 hi7.de
     1297 tutanota.de
     1255 spamfilterserver.com
     1219 surfmailfilter.nl
     1151 prolocation.net
     1009 xcellerate.nl

  * infomaniak.ch - Swiss hosting provider
  * triodos.com - Bank in Spain
  * startupstack.tech - California hosting company
  * elbiahosting.sk - Slovak hosting company
  * isu.net.sa - Saudi research centre
  * statens-it.dk - Multiple Denmark government domains
  * startmail․com - Email provider in Germany
  * webreus.nl - hosting provider in the Netherlands
  * mailfence.com - Email provider in Belgium
  * velocir.co.uk - UK hosting and email provider

  https://stats.dnssec-tools.org/images/totalds.svg
  https://stats.dnssec-tools.org/tld-graphs/com.png
  https://stats.dnssec-tools.org/tld-graphs/net.png
  https://stats.dnssec-tools.org/tld-graphs/org.png
  https://stats.dnssec-tools.org/tld-graphs/biz.png
  https://stats.dnssec-tools.org/tld-graphs/info.png
  https://stats.dnssec-tools.org/tld-graphs/us.png

  https://mail.sys4.de/pipermail/dane-users/2020-April/000553.html