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 2026.10.31 -

gov.pubmed. | 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)  [v4R] 1/0.048234s  [v6R] 1/0.086805s	0.234773	362278	11.81	0.282741	362590	9.81	83%	graph
com.github  (https)	0.027301	530083	149.79	0.003034	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.097777s  [v6R] 2/0.051755s	0.126208	118475	7.17	0.079755	118475	11.44	159%	graph
com.google.www  (https)	0.063728	87226	10.56	0.061125	87062	10.89	103%	graph
com.linkedin.www  (https)	0.191058	140465	5.61	0.218200	500987	17.53	312%	graph
com.twitter  (https)  [v4R] 1/0.066286s	0.168121	45106	2.05	0.017653	0	0	n/a	graph
com.youtube.www  (https)	0.175143	953540	41.57	0.269251	851760	24.16	58%	graph
gov.hhs.www  (https)	0.058121	365	0.05	0.257110	365	0.01	23%	graph
gov.nih.nlm.ncbi.account  (https)	0.274168	5120096	142.57	0.309211	5120096	126.42	89%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.028466	119140	32.46	0.034098	119140	26.73	82%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.052109	163571	24.00	0.009514	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.062251	42377	5.21	0.171085	42377	1.89	36%	graph
gov.nih.nlm.ncbi.www  (https)	0.040698	39223	7.48	0.037384	39223	8.09	108%	graph
gov.nih.nlm.support  (https)	0.338340	46172	1.04	0.053557	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.079638	34729	3.35	0.087568	34729	3.05	91%	graph
gov.nih.www  (https)	0.041134	5656	1.05	0.052796	5681	0.83	79%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.028455s  [v6R] 1/0.028270s	0.132857	42377	2.45	0.127914	42377	2.55	104%	graph
gov.usa.www  (https)	0.021413	48647	17.67	0.031437	48647	11.97	68%	graph
IPv6 operational: 100% of linked subdomains (1/1), 78% of all linked domains (14/18)	v4[s]	v4[B]	v4[Mbps]	v6[s]	v6[B]	v6[Mbps]	6/4[Mbps]	v4|v6

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