[DNSOP] Alexa Top 1M EDNS compliance

Mark Andrews <marka@isc.org> Tue, 13 September 2016 02:34 UTC

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From: Mark Andrews <marka@isc.org>
Date: Tue, 13 Sep 2016 12:34:40 +1000
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Subject: [DNSOP] Alexa Top 1M EDNS compliance
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Generated: 2016-08-28T00:00:12Z -- 2016-09-12T09:24:23Z

Summary

Of servers that responded at all:
233219 of 236280 (98.70%) responded to a EDNS version 0 query 
232759 of 236280 (98.51%) responded to a EDNS unknown option 
230582 of 236280 (97.59%) responded to a EDNS unknown flags 
226444 of 236280 (95.84%) responded to a EDNS version 1 query 
226317 of 236280 (95.78%) responded to a EDNS unknown version and option

226064 of 236280 (95.68%) of nameservers support EDNS 
181771 of 226064 (80.41%) EDNS capable servers are all ok 
201823 of 226064 (89.28%) EDNS capable servers support unknown EDNS versions 
199210 of 226064 (88.12%) EDNS capable servers support unknown EDNS options 
220421 of 226064 (97.50%) EDNS capable servers support unknown EDNS flags 
183509 of 226064 (81.18%) EDNS capable servers support unknown EDNS version and options 
224744 of 226064 (99.42%) EDNS capable servers support DO=1

18194 of 226064 (8.05%) EDNS capable servers return a NSID option 
5841 of 226064 (2.58%) EDNS capable servers return a EXPIRE option 
11906 of 226064 (5.27%) EDNS capable servers return a SUBNET option 
977 of 226064 (0.43%) EDNS capable servers return a Server EDNS COOKIE option 

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE:	+61 2 9871 4742		         INTERNET: marka@isc.org