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 2025.09.15 -

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] 1/0.109169s	0.284057	74699	2.01	0.189760	77702	3.14	156%	graph
com.github  (https)	0.031690	558338	137.41	0.002265	0	0	n/a	graph
com.google-analytics.www  (https)  [v4R] 2/0.065163s  [v6R] 2/0.073748s	0.128342	118475	7.06	0.134005	118475	6.75	96%	graph
com.google.www  (https)	0.071488	17009	1.83	0.054242	17046	2.41	132%	graph
com.linkedin.www  (https)	0.201912	138971	5.27	0.226996	138894	4.69	89%	graph
com.twitter  (https)  [v4R] 1/0.067711s	1.222773	219565	1.37	0.003330	0	0	n/a	graph
com.youtube.www  (https)	0.192521	658991	26.19	0.192641	659601	26.21	100%	graph
gov.hhs.www  (https)	0.044971	363	0.06	0.069868	361	0.04	63%	graph
gov.nih.nlm.ncbi.account  (https)	0.478403	4700294	75.02	0.649766	4700294	55.25	74%	graph
gov.nih.nlm.ncbi.cdn  (https)	0.088234	119140	10.33	0.038408	119140	23.92	232%	graph
gov.nih.nlm.ncbi.ncbiinsights  (https)	0.031674	131292	32.31	0.008936	0	0	n/a	graph
gov.nih.nlm.ncbi.pubmed  (https)	0.123355	42435	2.63	0.099941	42435	3.27	124%	graph
gov.nih.nlm.ncbi.www  (https)	0.038727	37806	7.59	0.057381	37806	5.06	67%	graph
gov.nih.nlm.support  (https)	0.179162	43006	1.83	0.001218	0	0	n/a	graph
gov.nih.nlm.www  (https)	0.118299	34773	2.25	0.270671	34773	0.98	44%	graph
gov.nih.www  (https)	0.087274	57119	5.01	0.090924	57119	4.84	97%	graph
• gov.pubmed.www  (https)  [v4R] 1/0.034827s  [v6R] 1/0.036560s	0.165699	42435	1.96	0.155728	42435	2.09	106%	graph
gov.usa.www  (https)	0.029168	47992	12.63	0.032451	47992	11.44	91%	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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