Referenced Domain IPv4/IPv6 Web Statistics

Background and Methodology	IPv6 & DNSSEC SnapShots
USG IPv6 & DNSSEC Statistics	USG IPv4 Statistics
Industry IPv6 & DNSSEC Statistics	Industry IPv4 Statistics
University IPv6 & DNSSEC Statistics	University IPv4 Statistics
CFO Act Agency Summary Statistics	USG IPv6 Enabled WWW Sites

- Referenced Domain Web Statistics for 2021.05.18 -

gov.fda. | Department of Health and Human Services	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6
com.facebook.www  (https)	0.260	195928	5.75	0.268	196104	5.59	97%	graph
com.twitter.www  (https)  [v4R] 1/0.428s	0.920	63819	0.53	0.004	0	0	n/a	graph
com.youtube.www  (https)	0.379	503566	10.14	0.344	504645	11.18	110%	graph
gov.fda.www  [v4R] 1/0.071s  [v6R] 1/0.030s	0.214	54313	1.94	0.193	54313	2.14	110%	graph
• gov.fda.www  (https)	0.143	54313	2.89	0.337	54313	1.23	42%	graph
gov.hhs.www  (https)	2.654	50555	0.15	0.152	50555	2.54	1745%	graph
gov.usa.www  (https)	0.128	107769	6.43	0.248	107769	3.31	51%	graph
IPv6 operational: 100% of linked subdomains (2/2), 86% of all linked domains (6/7)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

For comments, questions or suggested domains please contact: usgv6-deploymon@nist.gov