The "www..*" search is also intersting, I think:
https://crt.sh/?dNSName=www..%25

crt.sh ID        Logged At  ⇧   Not Before      Identity        Issuer Name
39744873        2016-10-02      2012-12-29      www..coinfling.com      
38647998        2016-10-01      2011-03-24      www..altmangroup.com    
37532439        2016-10-01      2014-05-02      www..edm.me     
35234108        2016-09-26      2013-12-09      www..erhgroup.com.tw    
33710552        2016-09-22      2009-08-04 www..webmail.collegeofidaho.edu
33278853        2016-09-20      2013-03-26      www..labpro2000.com     
32918004        2016-09-19      2013-04-30      www..getswapapp.com     
22835635        2016-06-22      2016-06-20      www..tapspace.org       
9999623 2015-10-07      2015-09-23      www..imypaths.com       
8584525 2015-07-24      2015-07-22      www..myacademicprogram.in       
8431374 2015-07-13      2015-07-06      www..marza.com.br       
8216255 2015-06-28      2015-06-25      www..mysummitortho.com  
4327936 2014-06-14      2014-06-12      www..mysummitortho.com  
4303228 2014-06-10      2008-12-03      www..wildlifelicense.com
3956875 2014-04-25      2014-04-23      www..mysummitortho.com  
2728659 2013-09-28      2013-09-25      www..marza.com.br       
637932  2013-03-26      2012-10-21      www..guidedstudies.com  
85797   2013-03-26      2012-07-01      www..mysummitortho.com  


Le 18/07/2017 à 17:57, Hanno Böck a écrit :
More dotdot-certificates:

https://crt.sh/?id=34528113
for autodiscover.amphenolcanada..com
Expired 2012
issued by Geotrust (aka symantec)

https://crt.sh/?id=3478078
for PDC-LIB-WEB1.RBI1.rbi..in
Expired 2016
issued by Institute for Development and Research in Banking Technology

https://crt.sh/?id=4112846
pkictslvws.dmdc.osd..mil
expired 2016
issued by U.S. Government

So all expired, but certainly at least the ones from 2016 are worrying,
indicating that the issuing CAs are failing at domain validation.

(Due to limitations in the search methodology - scraping crt.sh
search results and looping through tlds - I only searched for ..tld. It
would certainly be valuable to search further.)


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